Home / 1,552.56-2,145.12-1,537.20

Finding the Fourth Proportional to 1,552.56, 2,145.12 and 1,537.20

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Solution

The fourth proportional to 1,552.56, 2,145.12 and 1,537.20 is: 2,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.56 : 2,145.12 = 1,537.20 : x
  2. Step 2: Convert to fraction form
    1,552.56/2,145.12 = 1,537.20/x
  3. Step 3: Cross multiply
    1,552.56x = 2,145.12 × 1,537.20
  4. Step 4: Simplify right side
    1,552.56x = 3,297,478.46
  5. Step 5: Solve for x
    x = 3,297,478.46/1,552.56
  6. Step 6: Final answer
    x = 2,123.90

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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.