Home / 1,901.97-2,853.51-928.62

Finding the Fourth Proportional to 1,901.97, 2,853.51 and 928.62

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Solution

The fourth proportional to 1,901.97, 2,853.51 and 928.62 is: 1,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.97 : 2,853.51 = 928.62 : x
  2. Step 2: Convert to fraction form
    1,901.97/2,853.51 = 928.62/x
  3. Step 3: Cross multiply
    1,901.97x = 2,853.51 × 928.62
  4. Step 4: Simplify right side
    1,901.97x = 2,649,826.46
  5. Step 5: Solve for x
    x = 2,649,826.46/1,901.97
  6. Step 6: Final answer
    x = 1,393.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.