Home / 1,552.38-2,143.17-1,029.12

Finding the Fourth Proportional to 1,552.38, 2,143.17 and 1,029.12

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Solution

The fourth proportional to 1,552.38, 2,143.17 and 1,029.12 is: 1,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.38 : 2,143.17 = 1,029.12 : x
  2. Step 2: Convert to fraction form
    1,552.38/2,143.17 = 1,029.12/x
  3. Step 3: Cross multiply
    1,552.38x = 2,143.17 × 1,029.12
  4. Step 4: Simplify right side
    1,552.38x = 2,205,579.11
  5. Step 5: Solve for x
    x = 2,205,579.11/1,552.38
  6. Step 6: Final answer
    x = 1,420.77

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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.