Home / 1,552.56-2,143.09-1,028.76

Finding the Fourth Proportional to 1,552.56, 2,143.09 and 1,028.76

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Solution

The fourth proportional to 1,552.56, 2,143.09 and 1,028.76 is: 1,420.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.56 : 2,143.09 = 1,028.76 : x
  2. Step 2: Convert to fraction form
    1,552.56/2,143.09 = 1,028.76/x
  3. Step 3: Cross multiply
    1,552.56x = 2,143.09 × 1,028.76
  4. Step 4: Simplify right side
    1,552.56x = 2,204,725.27
  5. Step 5: Solve for x
    x = 2,204,725.27/1,552.56
  6. Step 6: Final answer
    x = 1,420.06

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Double scale
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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.