Home / 5,397.20-7,443.91-3,509.39

Finding the Fourth Proportional to 5,397.20, 7,443.91 and 3,509.39

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Solution

The fourth proportional to 5,397.20, 7,443.91 and 3,509.39 is: 4,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.20 : 7,443.91 = 3,509.39 : x
  2. Step 2: Convert to fraction form
    5,397.20/7,443.91 = 3,509.39/x
  3. Step 3: Cross multiply
    5,397.20x = 7,443.91 × 3,509.39
  4. Step 4: Simplify right side
    5,397.20x = 26,123,606.31
  5. Step 5: Solve for x
    x = 26,123,606.31/5,397.20
  6. Step 6: Final answer
    x = 4,840.22

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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.