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Finding the Fourth Proportional to 3,007.95, 4,489.90 and 2,652.87

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Solution

The fourth proportional to 3,007.95, 4,489.90 and 2,652.87 is: 3,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.95 : 4,489.90 = 2,652.87 : x
  2. Step 2: Convert to fraction form
    3,007.95/4,489.90 = 2,652.87/x
  3. Step 3: Cross multiply
    3,007.95x = 4,489.90 × 2,652.87
  4. Step 4: Simplify right side
    3,007.95x = 11,911,089.96
  5. Step 5: Solve for x
    x = 11,911,089.96/3,007.95
  6. Step 6: Final answer
    x = 3,959.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.