Home / 7,146.06-10,719.76-1,881.12

Finding the Fourth Proportional to 7,146.06, 10,719.76 and 1,881.12

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Solution

The fourth proportional to 7,146.06, 10,719.76 and 1,881.12 is: 2,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.06 : 10,719.76 = 1,881.12 : x
  2. Step 2: Convert to fraction form
    7,146.06/10,719.76 = 1,881.12/x
  3. Step 3: Cross multiply
    7,146.06x = 10,719.76 × 1,881.12
  4. Step 4: Simplify right side
    7,146.06x = 20,165,154.93
  5. Step 5: Solve for x
    x = 20,165,154.93/7,146.06
  6. Step 6: Final answer
    x = 2,821.86

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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.