Home / 1,639.56-2,264.22-1,535.04

Finding the Fourth Proportional to 1,639.56, 2,264.22 and 1,535.04

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Solution

The fourth proportional to 1,639.56, 2,264.22 and 1,535.04 is: 2,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.56 : 2,264.22 = 1,535.04 : x
  2. Step 2: Convert to fraction form
    1,639.56/2,264.22 = 1,535.04/x
  3. Step 3: Cross multiply
    1,639.56x = 2,264.22 × 1,535.04
  4. Step 4: Simplify right side
    1,639.56x = 3,475,668.27
  5. Step 5: Solve for x
    x = 3,475,668.27/1,639.56
  6. Step 6: Final answer
    x = 2,119.88

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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.