Home / 5,128.28-7,077.14-3,032.44

Finding the Fourth Proportional to 5,128.28, 7,077.14 and 3,032.44

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Solution

The fourth proportional to 5,128.28, 7,077.14 and 3,032.44 is: 4,184.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.28 : 7,077.14 = 3,032.44 : x
  2. Step 2: Convert to fraction form
    5,128.28/7,077.14 = 3,032.44/x
  3. Step 3: Cross multiply
    5,128.28x = 7,077.14 × 3,032.44
  4. Step 4: Simplify right side
    5,128.28x = 21,461,002.42
  5. Step 5: Solve for x
    x = 21,461,002.42/5,128.28
  6. Step 6: Final answer
    x = 4,184.83

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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.