Home / 5,385.95-7,432.56-3,028.07

Finding the Fourth Proportional to 5,385.95, 7,432.56 and 3,028.07

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Solution

The fourth proportional to 5,385.95, 7,432.56 and 3,028.07 is: 4,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.95 : 7,432.56 = 3,028.07 : x
  2. Step 2: Convert to fraction form
    5,385.95/7,432.56 = 3,028.07/x
  3. Step 3: Cross multiply
    5,385.95x = 7,432.56 × 3,028.07
  4. Step 4: Simplify right side
    5,385.95x = 22,506,311.96
  5. Step 5: Solve for x
    x = 22,506,311.96/5,385.95
  6. Step 6: Final answer
    x = 4,178.71

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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.