Home / 2,557.20-3,528.80-1,508.88

Finding the Fourth Proportional to 2,557.20, 3,528.80 and 1,508.88

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Solution

The fourth proportional to 2,557.20, 3,528.80 and 1,508.88 is: 2,082.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.20 : 3,528.80 = 1,508.88 : x
  2. Step 2: Convert to fraction form
    2,557.20/3,528.80 = 1,508.88/x
  3. Step 3: Cross multiply
    2,557.20x = 3,528.80 × 1,508.88
  4. Step 4: Simplify right side
    2,557.20x = 5,324,535.74
  5. Step 5: Solve for x
    x = 5,324,535.74/2,557.20
  6. Step 6: Final answer
    x = 2,082.17

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1.5x scale

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.