Home / 10,581.90-15,871.23-2,791.32

Finding the Fourth Proportional to 10,581.90, 15,871.23 and 2,791.32

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Solution

The fourth proportional to 10,581.90, 15,871.23 and 2,791.32 is: 4,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.90 : 15,871.23 = 2,791.32 : x
  2. Step 2: Convert to fraction form
    10,581.90/15,871.23 = 2,791.32/x
  3. Step 3: Cross multiply
    10,581.90x = 15,871.23 × 2,791.32
  4. Step 4: Simplify right side
    10,581.90x = 44,301,681.72
  5. Step 5: Solve for x
    x = 44,301,681.72/10,581.90
  6. Step 6: Final answer
    x = 4,186.55

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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.