Home / 6,985.25-9,639.69-3,841.55

Finding the Fourth Proportional to 6,985.25, 9,639.69 and 3,841.55

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Solution

The fourth proportional to 6,985.25, 9,639.69 and 3,841.55 is: 5,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.25 : 9,639.69 = 3,841.55 : x
  2. Step 2: Convert to fraction form
    6,985.25/9,639.69 = 3,841.55/x
  3. Step 3: Cross multiply
    6,985.25x = 9,639.69 × 3,841.55
  4. Step 4: Simplify right side
    6,985.25x = 37,031,351.12
  5. Step 5: Solve for x
    x = 37,031,351.12/6,985.25
  6. Step 6: Final answer
    x = 5,301.36

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1.5x scale

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.