Home / 1,577.52-2,179.20-1,358.88

Finding the Fourth Proportional to 1,577.52, 2,179.20 and 1,358.88

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Solution

The fourth proportional to 1,577.52, 2,179.20 and 1,358.88 is: 1,877.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.52 : 2,179.20 = 1,358.88 : x
  2. Step 2: Convert to fraction form
    1,577.52/2,179.20 = 1,358.88/x
  3. Step 3: Cross multiply
    1,577.52x = 2,179.20 × 1,358.88
  4. Step 4: Simplify right side
    1,577.52x = 2,961,271.30
  5. Step 5: Solve for x
    x = 2,961,271.30/1,577.52
  6. Step 6: Final answer
    x = 1,877.17

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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.