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Finding the Fourth Proportional to 5,401.70, 8,102.55 and 4,753.70

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Solution

The fourth proportional to 5,401.70, 8,102.55 and 4,753.70 is: 7,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.70 : 8,102.55 = 4,753.70 : x
  2. Step 2: Convert to fraction form
    5,401.70/8,102.55 = 4,753.70/x
  3. Step 3: Cross multiply
    5,401.70x = 8,102.55 × 4,753.70
  4. Step 4: Simplify right side
    5,401.70x = 38,517,091.94
  5. Step 5: Solve for x
    x = 38,517,091.94/5,401.70
  6. Step 6: Final answer
    x = 7,130.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.