Home / 7,923.10-11,885.28-2,079.70

Finding the Fourth Proportional to 7,923.10, 11,885.28 and 2,079.70

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Solution

The fourth proportional to 7,923.10, 11,885.28 and 2,079.70 is: 3,119.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.10 : 11,885.28 = 2,079.70 : x
  2. Step 2: Convert to fraction form
    7,923.10/11,885.28 = 2,079.70/x
  3. Step 3: Cross multiply
    7,923.10x = 11,885.28 × 2,079.70
  4. Step 4: Simplify right side
    7,923.10x = 24,717,816.82
  5. Step 5: Solve for x
    x = 24,717,816.82/7,923.10
  6. Step 6: Final answer
    x = 3,119.72

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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.