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Finding the Fourth Proportional to 6,660.53, 9,985.66 and 2,500.45

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Solution

The fourth proportional to 6,660.53, 9,985.66 and 2,500.45 is: 3,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.53 : 9,985.66 = 2,500.45 : x
  2. Step 2: Convert to fraction form
    6,660.53/9,985.66 = 2,500.45/x
  3. Step 3: Cross multiply
    6,660.53x = 9,985.66 × 2,500.45
  4. Step 4: Simplify right side
    6,660.53x = 24,968,612.33
  5. Step 5: Solve for x
    x = 24,968,612.33/6,660.53
  6. Step 6: Final answer
    x = 3,748.74

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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.