Home / 5,853.46-8,781.06-2,155.40

Finding the Fourth Proportional to 5,853.46, 8,781.06 and 2,155.40

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Solution

The fourth proportional to 5,853.46, 8,781.06 and 2,155.40 is: 3,233.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,853.46 : 8,781.06 = 2,155.40 : x
  2. Step 2: Convert to fraction form
    5,853.46/8,781.06 = 2,155.40/x
  3. Step 3: Cross multiply
    5,853.46x = 8,781.06 × 2,155.40
  4. Step 4: Simplify right side
    5,853.46x = 18,926,685.95
  5. Step 5: Solve for x
    x = 18,926,685.95/5,853.46
  6. Step 6: Final answer
    x = 3,233.42

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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.