Home / 2,281.30-3,148.00-1,397.08

Finding the Fourth Proportional to 2,281.30, 3,148.00 and 1,397.08

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Solution

The fourth proportional to 2,281.30, 3,148.00 and 1,397.08 is: 1,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.30 : 3,148.00 = 1,397.08 : x
  2. Step 2: Convert to fraction form
    2,281.30/3,148.00 = 1,397.08/x
  3. Step 3: Cross multiply
    2,281.30x = 3,148.00 × 1,397.08
  4. Step 4: Simplify right side
    2,281.30x = 4,398,008.28
  5. Step 5: Solve for x
    x = 4,398,008.28/2,281.30
  6. Step 6: Final answer
    x = 1,927.85

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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.