Home / 6,985.50-9,639.99-3,841.89

Finding the Fourth Proportional to 6,985.50, 9,639.99 and 3,841.89

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Solution

The fourth proportional to 6,985.50, 9,639.99 and 3,841.89 is: 5,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.50 : 9,639.99 = 3,841.89 : x
  2. Step 2: Convert to fraction form
    6,985.50/9,639.99 = 3,841.89/x
  3. Step 3: Cross multiply
    6,985.50x = 9,639.99 × 3,841.89
  4. Step 4: Simplify right side
    6,985.50x = 37,035,781.18
  5. Step 5: Solve for x
    x = 37,035,781.18/6,985.50
  6. Step 6: Final answer
    x = 5,301.81

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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.