Home / 1,902.16-2,624.28-1,115.92

Finding the Fourth Proportional to 1,902.16, 2,624.28 and 1,115.92

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Solution

The fourth proportional to 1,902.16, 2,624.28 and 1,115.92 is: 1,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.16 : 2,624.28 = 1,115.92 : x
  2. Step 2: Convert to fraction form
    1,902.16/2,624.28 = 1,115.92/x
  3. Step 3: Cross multiply
    1,902.16x = 2,624.28 × 1,115.92
  4. Step 4: Simplify right side
    1,902.16x = 2,928,486.54
  5. Step 5: Solve for x
    x = 2,928,486.54/1,902.16
  6. Step 6: Final answer
    x = 1,539.56

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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.