Home / 2,666.36-3,679.56-1,487.43

Finding the Fourth Proportional to 2,666.36, 3,679.56 and 1,487.43

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Solution

The fourth proportional to 2,666.36, 3,679.56 and 1,487.43 is: 2,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.36 : 3,679.56 = 1,487.43 : x
  2. Step 2: Convert to fraction form
    2,666.36/3,679.56 = 1,487.43/x
  3. Step 3: Cross multiply
    2,666.36x = 3,679.56 × 1,487.43
  4. Step 4: Simplify right side
    2,666.36x = 5,473,087.93
  5. Step 5: Solve for x
    x = 5,473,087.93/2,666.36
  6. Step 6: Final answer
    x = 2,052.64

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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.