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Finding the Fourth Proportional to 6,462.80, 8,898.92 and 4,871.76

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Solution

The fourth proportional to 6,462.80, 8,898.92 and 4,871.76 is: 6,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,462.80 : 8,898.92 = 4,871.76 : x
  2. Step 2: Convert to fraction form
    6,462.80/8,898.92 = 4,871.76/x
  3. Step 3: Cross multiply
    6,462.80x = 8,898.92 × 4,871.76
  4. Step 4: Simplify right side
    6,462.80x = 43,353,402.50
  5. Step 5: Solve for x
    x = 43,353,402.50/6,462.80
  6. Step 6: Final answer
    x = 6,708.15

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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.