Home / 5,398.12-7,400.85-5,299.72

Finding the Fourth Proportional to 5,398.12, 7,400.85 and 5,299.72

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Solution

The fourth proportional to 5,398.12, 7,400.85 and 5,299.72 is: 7,265.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.12 : 7,400.85 = 5,299.72 : x
  2. Step 2: Convert to fraction form
    5,398.12/7,400.85 = 5,299.72/x
  3. Step 3: Cross multiply
    5,398.12x = 7,400.85 × 5,299.72
  4. Step 4: Simplify right side
    5,398.12x = 39,222,432.76
  5. Step 5: Solve for x
    x = 39,222,432.76/5,398.12
  6. Step 6: Final answer
    x = 7,265.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.