Home / 2,666.61-3,679.97-1,487.75

Finding the Fourth Proportional to 2,666.61, 3,679.97 and 1,487.75

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Solution

The fourth proportional to 2,666.61, 3,679.97 and 1,487.75 is: 2,053.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.61 : 3,679.97 = 1,487.75 : x
  2. Step 2: Convert to fraction form
    2,666.61/3,679.97 = 1,487.75/x
  3. Step 3: Cross multiply
    2,666.61x = 3,679.97 × 1,487.75
  4. Step 4: Simplify right side
    2,666.61x = 5,474,849.53
  5. Step 5: Solve for x
    x = 5,474,849.53/2,666.61
  6. Step 6: Final answer
    x = 2,053.11

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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.