Home / 7,175.27-10,762.88-1,981.13

Finding the Fourth Proportional to 7,175.27, 10,762.88 and 1,981.13

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Solution

The fourth proportional to 7,175.27, 10,762.88 and 1,981.13 is: 2,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.27 : 10,762.88 = 1,981.13 : x
  2. Step 2: Convert to fraction form
    7,175.27/10,762.88 = 1,981.13/x
  3. Step 3: Cross multiply
    7,175.27x = 10,762.88 × 1,981.13
  4. Step 4: Simplify right side
    7,175.27x = 21,322,615.59
  5. Step 5: Solve for x
    x = 21,322,615.59/7,175.27
  6. Step 6: Final answer
    x = 2,971.68

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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.