Home / 2,666.49-3,679.82-1,487.58

Finding the Fourth Proportional to 2,666.49, 3,679.82 and 1,487.58

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Solution

The fourth proportional to 2,666.49, 3,679.82 and 1,487.58 is: 2,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.49 : 3,679.82 = 1,487.58 : x
  2. Step 2: Convert to fraction form
    2,666.49/3,679.82 = 1,487.58/x
  3. Step 3: Cross multiply
    2,666.49x = 3,679.82 × 1,487.58
  4. Step 4: Simplify right side
    2,666.49x = 5,474,026.64
  5. Step 5: Solve for x
    x = 5,474,026.64/2,666.49
  6. Step 6: Final answer
    x = 2,052.90

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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.