Home / 5,281.54-7,285.28-3,155.59

Finding the Fourth Proportional to 5,281.54, 7,285.28 and 3,155.59

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Solution

The fourth proportional to 5,281.54, 7,285.28 and 3,155.59 is: 4,352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.54 : 7,285.28 = 3,155.59 : x
  2. Step 2: Convert to fraction form
    5,281.54/7,285.28 = 3,155.59/x
  3. Step 3: Cross multiply
    5,281.54x = 7,285.28 × 3,155.59
  4. Step 4: Simplify right side
    5,281.54x = 22,989,350.04
  5. Step 5: Solve for x
    x = 22,989,350.04/5,281.54
  6. Step 6: Final answer
    x = 4,352.78

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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.