Home / 1,628.32-2,456.92-1,557.28

Finding the Fourth Proportional to 1,628.32, 2,456.92 and 1,557.28

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Solution

The fourth proportional to 1,628.32, 2,456.92 and 1,557.28 is: 2,349.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.32 : 2,456.92 = 1,557.28 : x
  2. Step 2: Convert to fraction form
    1,628.32/2,456.92 = 1,557.28/x
  3. Step 3: Cross multiply
    1,628.32x = 2,456.92 × 1,557.28
  4. Step 4: Simplify right side
    1,628.32x = 3,826,112.38
  5. Step 5: Solve for x
    x = 3,826,112.38/1,628.32
  6. Step 6: Final answer
    x = 2,349.73

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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.