Home / 7,126.81-10,691.56-2,964.55

Finding the Fourth Proportional to 7,126.81, 10,691.56 and 2,964.55

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Solution

The fourth proportional to 7,126.81, 10,691.56 and 2,964.55 is: 4,447.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.81 : 10,691.56 = 2,964.55 : x
  2. Step 2: Convert to fraction form
    7,126.81/10,691.56 = 2,964.55/x
  3. Step 3: Cross multiply
    7,126.81x = 10,691.56 × 2,964.55
  4. Step 4: Simplify right side
    7,126.81x = 31,695,664.20
  5. Step 5: Solve for x
    x = 31,695,664.20/7,126.81
  6. Step 6: Final answer
    x = 4,447.38

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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.