Home / 4,259.39-6,389.89-1,338.53

Finding the Fourth Proportional to 4,259.39, 6,389.89 and 1,338.53

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Solution

The fourth proportional to 4,259.39, 6,389.89 and 1,338.53 is: 2,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.39 : 6,389.89 = 1,338.53 : x
  2. Step 2: Convert to fraction form
    4,259.39/6,389.89 = 1,338.53/x
  3. Step 3: Cross multiply
    4,259.39x = 6,389.89 × 1,338.53
  4. Step 4: Simplify right side
    4,259.39x = 8,553,024.17
  5. Step 5: Solve for x
    x = 8,553,024.17/4,259.39
  6. Step 6: Final answer
    x = 2,008.04

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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.