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Finding the Fourth Proportional to 3,239.95, 4,472.01 and 1,914.13

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Solution

The fourth proportional to 3,239.95, 4,472.01 and 1,914.13 is: 2,642.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.95 : 4,472.01 = 1,914.13 : x
  2. Step 2: Convert to fraction form
    3,239.95/4,472.01 = 1,914.13/x
  3. Step 3: Cross multiply
    3,239.95x = 4,472.01 × 1,914.13
  4. Step 4: Simplify right side
    3,239.95x = 8,560,008.50
  5. Step 5: Solve for x
    x = 8,560,008.50/3,239.95
  6. Step 6: Final answer
    x = 2,642.02

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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.