Home / 5,417.28-8,127.36-2,820.96

Finding the Fourth Proportional to 5,417.28, 8,127.36 and 2,820.96

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Solution

The fourth proportional to 5,417.28, 8,127.36 and 2,820.96 is: 4,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.28 : 8,127.36 = 2,820.96 : x
  2. Step 2: Convert to fraction form
    5,417.28/8,127.36 = 2,820.96/x
  3. Step 3: Cross multiply
    5,417.28x = 8,127.36 × 2,820.96
  4. Step 4: Simplify right side
    5,417.28x = 22,926,957.47
  5. Step 5: Solve for x
    x = 22,926,957.47/5,417.28
  6. Step 6: Final answer
    x = 4,232.19

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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.