Home / 1,590.28-2,195.27-1,490.65

Finding the Fourth Proportional to 1,590.28, 2,195.27 and 1,490.65

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Solution

The fourth proportional to 1,590.28, 2,195.27 and 1,490.65 is: 2,057.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.28 : 2,195.27 = 1,490.65 : x
  2. Step 2: Convert to fraction form
    1,590.28/2,195.27 = 1,490.65/x
  3. Step 3: Cross multiply
    1,590.28x = 2,195.27 × 1,490.65
  4. Step 4: Simplify right side
    1,590.28x = 3,272,371.87
  5. Step 5: Solve for x
    x = 3,272,371.87/1,590.28
  6. Step 6: Final answer
    x = 2,057.74

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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.