Home / 3,927.32-5,423.22-2,930.86

Finding the Fourth Proportional to 3,927.32, 5,423.22 and 2,930.86

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Solution

The fourth proportional to 3,927.32, 5,423.22 and 2,930.86 is: 4,047.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.32 : 5,423.22 = 2,930.86 : x
  2. Step 2: Convert to fraction form
    3,927.32/5,423.22 = 2,930.86/x
  3. Step 3: Cross multiply
    3,927.32x = 5,423.22 × 2,930.86
  4. Step 4: Simplify right side
    3,927.32x = 15,894,698.57
  5. Step 5: Solve for x
    x = 15,894,698.57/3,927.32
  6. Step 6: Final answer
    x = 4,047.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.