Home / 3,457.89-5,186.61-1,117.85

Finding the Fourth Proportional to 3,457.89, 5,186.61 and 1,117.85

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Solution

The fourth proportional to 3,457.89, 5,186.61 and 1,117.85 is: 1,676.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.89 : 5,186.61 = 1,117.85 : x
  2. Step 2: Convert to fraction form
    3,457.89/5,186.61 = 1,117.85/x
  3. Step 3: Cross multiply
    3,457.89x = 5,186.61 × 1,117.85
  4. Step 4: Simplify right side
    3,457.89x = 5,797,826.06
  5. Step 5: Solve for x
    x = 5,797,826.06/3,457.89
  6. Step 6: Final answer
    x = 1,676.69

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,458.89, 5,188.11 and 1,118.85
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.