Home / 5,397.15-7,447.82-3,628.47

Finding the Fourth Proportional to 5,397.15, 7,447.82 and 3,628.47

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Solution

The fourth proportional to 5,397.15, 7,447.82 and 3,628.47 is: 5,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.15 : 7,447.82 = 3,628.47 : x
  2. Step 2: Convert to fraction form
    5,397.15/7,447.82 = 3,628.47/x
  3. Step 3: Cross multiply
    5,397.15x = 7,447.82 × 3,628.47
  4. Step 4: Simplify right side
    5,397.15x = 27,024,173.29
  5. Step 5: Solve for x
    x = 27,024,173.29/5,397.15
  6. Step 6: Final answer
    x = 5,007.12

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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.