Home / 3,457.50-5,186.25-1,119.47

Finding the Fourth Proportional to 3,457.50, 5,186.25 and 1,119.47

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Solution

The fourth proportional to 3,457.50, 5,186.25 and 1,119.47 is: 1,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.50 : 5,186.25 = 1,119.47 : x
  2. Step 2: Convert to fraction form
    3,457.50/5,186.25 = 1,119.47/x
  3. Step 3: Cross multiply
    3,457.50x = 5,186.25 × 1,119.47
  4. Step 4: Simplify right side
    3,457.50x = 5,805,825.36
  5. Step 5: Solve for x
    x = 5,805,825.36/3,457.50
  6. Step 6: Final answer
    x = 1,679.20

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Double 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.