Home / 3,899.90-5,848.98-1,125.97

Finding the Fourth Proportional to 3,899.90, 5,848.98 and 1,125.97

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Solution

The fourth proportional to 3,899.90, 5,848.98 and 1,125.97 is: 1,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.90 : 5,848.98 = 1,125.97 : x
  2. Step 2: Convert to fraction form
    3,899.90/5,848.98 = 1,125.97/x
  3. Step 3: Cross multiply
    3,899.90x = 5,848.98 × 1,125.97
  4. Step 4: Simplify right side
    3,899.90x = 6,585,766.67
  5. Step 5: Solve for x
    x = 6,585,766.67/3,899.90
  6. Step 6: Final answer
    x = 1,688.70

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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.