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Finding the Fourth Proportional to 4,895.48, 7,337.46 and 3,138.20

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Solution

The fourth proportional to 4,895.48, 7,337.46 and 3,138.20 is: 4,703.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.48 : 7,337.46 = 3,138.20 : x
  2. Step 2: Convert to fraction form
    4,895.48/7,337.46 = 3,138.20/x
  3. Step 3: Cross multiply
    4,895.48x = 7,337.46 × 3,138.20
  4. Step 4: Simplify right side
    4,895.48x = 23,026,416.97
  5. Step 5: Solve for x
    x = 23,026,416.97/4,895.48
  6. Step 6: Final answer
    x = 4,703.61

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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.