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Finding the Fourth Proportional to 6,607.80, 9,911.18 and 2,445.86

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Solution

The fourth proportional to 6,607.80, 9,911.18 and 2,445.86 is: 3,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.80 : 9,911.18 = 2,445.86 : x
  2. Step 2: Convert to fraction form
    6,607.80/9,911.18 = 2,445.86/x
  3. Step 3: Cross multiply
    6,607.80x = 9,911.18 × 2,445.86
  4. Step 4: Simplify right side
    6,607.80x = 24,241,358.71
  5. Step 5: Solve for x
    x = 24,241,358.71/6,607.80
  6. Step 6: Final answer
    x = 3,668.60

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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.