Home / 5,287.23-7,294.28-3,398.49

Finding the Fourth Proportional to 5,287.23, 7,294.28 and 3,398.49

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Solution

The fourth proportional to 5,287.23, 7,294.28 and 3,398.49 is: 4,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.23 : 7,294.28 = 3,398.49 : x
  2. Step 2: Convert to fraction form
    5,287.23/7,294.28 = 3,398.49/x
  3. Step 3: Cross multiply
    5,287.23x = 7,294.28 × 3,398.49
  4. Step 4: Simplify right side
    5,287.23x = 24,789,520.64
  5. Step 5: Solve for x
    x = 24,789,520.64/5,287.23
  6. Step 6: Final answer
    x = 4,688.56

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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.