Home / 7,139.96-10,708.84-1,946.24

Finding the Fourth Proportional to 7,139.96, 10,708.84 and 1,946.24

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Solution

The fourth proportional to 7,139.96, 10,708.84 and 1,946.24 is: 2,919.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.96 : 10,708.84 = 1,946.24 : x
  2. Step 2: Convert to fraction form
    7,139.96/10,708.84 = 1,946.24/x
  3. Step 3: Cross multiply
    7,139.96x = 10,708.84 × 1,946.24
  4. Step 4: Simplify right side
    7,139.96x = 20,841,972.76
  5. Step 5: Solve for x
    x = 20,841,972.76/7,139.96
  6. Step 6: Final answer
    x = 2,919.06

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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.