Home / 1,628.92-2,247.76-1,039.24

Finding the Fourth Proportional to 1,628.92, 2,247.76 and 1,039.24

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Solution

The fourth proportional to 1,628.92, 2,247.76 and 1,039.24 is: 1,434.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.92 : 2,247.76 = 1,039.24 : x
  2. Step 2: Convert to fraction form
    1,628.92/2,247.76 = 1,039.24/x
  3. Step 3: Cross multiply
    1,628.92x = 2,247.76 × 1,039.24
  4. Step 4: Simplify right side
    1,628.92x = 2,335,962.10
  5. Step 5: Solve for x
    x = 2,335,962.10/1,628.92
  6. Step 6: Final answer
    x = 1,434.06

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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.