Home / 1,557.32-2,324.58-1,372.80

Finding the Fourth Proportional to 1,557.32, 2,324.58 and 1,372.80

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Solution

The fourth proportional to 1,557.32, 2,324.58 and 1,372.80 is: 2,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.32 : 2,324.58 = 1,372.80 : x
  2. Step 2: Convert to fraction form
    1,557.32/2,324.58 = 1,372.80/x
  3. Step 3: Cross multiply
    1,557.32x = 2,324.58 × 1,372.80
  4. Step 4: Simplify right side
    1,557.32x = 3,191,183.42
  5. Step 5: Solve for x
    x = 3,191,183.42/1,557.32
  6. Step 6: Final answer
    x = 2,049.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.