Home / 7,127.55-10,683.77-2,743.11

Finding the Fourth Proportional to 7,127.55, 10,683.77 and 2,743.11

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Solution

The fourth proportional to 7,127.55, 10,683.77 and 2,743.11 is: 4,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.55 : 10,683.77 = 2,743.11 : x
  2. Step 2: Convert to fraction form
    7,127.55/10,683.77 = 2,743.11/x
  3. Step 3: Cross multiply
    7,127.55x = 10,683.77 × 2,743.11
  4. Step 4: Simplify right side
    7,127.55x = 29,306,742.61
  5. Step 5: Solve for x
    x = 29,306,742.61/7,127.55
  6. Step 6: Final answer
    x = 4,111.76

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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.