Home / 7,921.32-10,930.45-4,565.22

Finding the Fourth Proportional to 7,921.32, 10,930.45 and 4,565.22

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Solution

The fourth proportional to 7,921.32, 10,930.45 and 4,565.22 is: 6,299.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.32 : 10,930.45 = 4,565.22 : x
  2. Step 2: Convert to fraction form
    7,921.32/10,930.45 = 4,565.22/x
  3. Step 3: Cross multiply
    7,921.32x = 10,930.45 × 4,565.22
  4. Step 4: Simplify right side
    7,921.32x = 49,899,908.95
  5. Step 5: Solve for x
    x = 49,899,908.95/7,921.32
  6. Step 6: Final answer
    x = 6,299.44

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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.