Home / 1,490.19-2,057.46-1,332.31

Finding the Fourth Proportional to 1,490.19, 2,057.46 and 1,332.31

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Solution

The fourth proportional to 1,490.19, 2,057.46 and 1,332.31 is: 1,839.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.19 : 2,057.46 = 1,332.31 : x
  2. Step 2: Convert to fraction form
    1,490.19/2,057.46 = 1,332.31/x
  3. Step 3: Cross multiply
    1,490.19x = 2,057.46 × 1,332.31
  4. Step 4: Simplify right side
    1,490.19x = 2,741,174.53
  5. Step 5: Solve for x
    x = 2,741,174.53/1,490.19
  6. Step 6: Final answer
    x = 1,839.48

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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.