Home / 3,851.28-5,312.16-2,801.52

Finding the Fourth Proportional to 3,851.28, 5,312.16 and 2,801.52

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Solution

The fourth proportional to 3,851.28, 5,312.16 and 2,801.52 is: 3,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.28 : 5,312.16 = 2,801.52 : x
  2. Step 2: Convert to fraction form
    3,851.28/5,312.16 = 2,801.52/x
  3. Step 3: Cross multiply
    3,851.28x = 5,312.16 × 2,801.52
  4. Step 4: Simplify right side
    3,851.28x = 14,882,122.48
  5. Step 5: Solve for x
    x = 14,882,122.48/3,851.28
  6. Step 6: Final answer
    x = 3,864.20

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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.