Home / 7,926.96-10,939.20-4,390.17

Finding the Fourth Proportional to 7,926.96, 10,939.20 and 4,390.17

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Solution

The fourth proportional to 7,926.96, 10,939.20 and 4,390.17 is: 6,058.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.96 : 10,939.20 = 4,390.17 : x
  2. Step 2: Convert to fraction form
    7,926.96/10,939.20 = 4,390.17/x
  3. Step 3: Cross multiply
    7,926.96x = 10,939.20 × 4,390.17
  4. Step 4: Simplify right side
    7,926.96x = 48,024,947.66
  5. Step 5: Solve for x
    x = 48,024,947.66/7,926.96
  6. Step 6: Final answer
    x = 6,058.43

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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.