Home / 6,985.68-10,478.51-1,791.55

Finding the Fourth Proportional to 6,985.68, 10,478.51 and 1,791.55

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Solution

The fourth proportional to 6,985.68, 10,478.51 and 1,791.55 is: 2,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.68 : 10,478.51 = 1,791.55 : x
  2. Step 2: Convert to fraction form
    6,985.68/10,478.51 = 1,791.55/x
  3. Step 3: Cross multiply
    6,985.68x = 10,478.51 × 1,791.55
  4. Step 4: Simplify right side
    6,985.68x = 18,772,792.17
  5. Step 5: Solve for x
    x = 18,772,792.17/6,985.68
  6. Step 6: Final answer
    x = 2,687.33

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Similar ratio
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1.5x scale

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.