Home / 1,490.28-2,057.40-1,141.56

Finding the Fourth Proportional to 1,490.28, 2,057.40 and 1,141.56

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Solution

The fourth proportional to 1,490.28, 2,057.40 and 1,141.56 is: 1,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.28 : 2,057.40 = 1,141.56 : x
  2. Step 2: Convert to fraction form
    1,490.28/2,057.40 = 1,141.56/x
  3. Step 3: Cross multiply
    1,490.28x = 2,057.40 × 1,141.56
  4. Step 4: Simplify right side
    1,490.28x = 2,348,645.54
  5. Step 5: Solve for x
    x = 2,348,645.54/1,490.28
  6. Step 6: Final answer
    x = 1,575.98

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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.