Home / 5,397.40-7,448.14-3,039.68

Finding the Fourth Proportional to 5,397.40, 7,448.14 and 3,039.68

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Solution

The fourth proportional to 5,397.40, 7,448.14 and 3,039.68 is: 4,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.40 : 7,448.14 = 3,039.68 : x
  2. Step 2: Convert to fraction form
    5,397.40/7,448.14 = 3,039.68/x
  3. Step 3: Cross multiply
    5,397.40x = 7,448.14 × 3,039.68
  4. Step 4: Simplify right side
    5,397.40x = 22,639,962.20
  5. Step 5: Solve for x
    x = 22,639,962.20/5,397.40
  6. Step 6: Final answer
    x = 4,194.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.