Home / 1,629.20-2,456.92-1,607.36

Finding the Fourth Proportional to 1,629.20, 2,456.92 and 1,607.36

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Solution

The fourth proportional to 1,629.20, 2,456.92 and 1,607.36 is: 2,423.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.20 : 2,456.92 = 1,607.36 : x
  2. Step 2: Convert to fraction form
    1,629.20/2,456.92 = 1,607.36/x
  3. Step 3: Cross multiply
    1,629.20x = 2,456.92 × 1,607.36
  4. Step 4: Simplify right side
    1,629.20x = 3,949,154.93
  5. Step 5: Solve for x
    x = 3,949,154.93/1,629.20
  6. Step 6: Final answer
    x = 2,423.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.