Home / 2,666.60-3,680-1,487.74

Finding the Fourth Proportional to 2,666.60, 3,680 and 1,487.74

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Solution

The fourth proportional to 2,666.60, 3,680 and 1,487.74 is: 2,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.60 : 3,680 = 1,487.74 : x
  2. Step 2: Convert to fraction form
    2,666.60/3,680 = 1,487.74/x
  3. Step 3: Cross multiply
    2,666.60x = 3,680 × 1,487.74
  4. Step 4: Simplify right side
    2,666.60x = 5,474,883.20
  5. Step 5: Solve for x
    x = 5,474,883.20/2,666.60
  6. Step 6: Final answer
    x = 2,053.13

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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.