Home / 3,487.40-5,231.10-1,295.68

Finding the Fourth Proportional to 3,487.40, 5,231.10 and 1,295.68

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Solution

The fourth proportional to 3,487.40, 5,231.10 and 1,295.68 is: 1,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.40 : 5,231.10 = 1,295.68 : x
  2. Step 2: Convert to fraction form
    3,487.40/5,231.10 = 1,295.68/x
  3. Step 3: Cross multiply
    3,487.40x = 5,231.10 × 1,295.68
  4. Step 4: Simplify right side
    3,487.40x = 6,777,831.65
  5. Step 5: Solve for x
    x = 6,777,831.65/3,487.40
  6. Step 6: Final answer
    x = 1,943.52

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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.