Home / 3,457.85-5,185.67-1,117.36

Finding the Fourth Proportional to 3,457.85, 5,185.67 and 1,117.36

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Solution

The fourth proportional to 3,457.85, 5,185.67 and 1,117.36 is: 1,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.85 : 5,185.67 = 1,117.36 : x
  2. Step 2: Convert to fraction form
    3,457.85/5,185.67 = 1,117.36/x
  3. Step 3: Cross multiply
    3,457.85x = 5,185.67 × 1,117.36
  4. Step 4: Simplify right side
    3,457.85x = 5,794,245.53
  5. Step 5: Solve for x
    x = 5,794,245.53/3,457.85
  6. Step 6: Final answer
    x = 1,675.68

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Half scale
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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.