Home / 5,249.20-7,248.28-4,688.68

Finding the Fourth Proportional to 5,249.20, 7,248.28 and 4,688.68

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Solution

The fourth proportional to 5,249.20, 7,248.28 and 4,688.68 is: 6,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.20 : 7,248.28 = 4,688.68 : x
  2. Step 2: Convert to fraction form
    5,249.20/7,248.28 = 4,688.68/x
  3. Step 3: Cross multiply
    5,249.20x = 7,248.28 × 4,688.68
  4. Step 4: Simplify right side
    5,249.20x = 33,984,865.47
  5. Step 5: Solve for x
    x = 33,984,865.47/5,249.20
  6. Step 6: Final answer
    x = 6,474.29

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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.