Home / 7,939.07-10,955.79-4,402.20

Finding the Fourth Proportional to 7,939.07, 10,955.79 and 4,402.20

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Solution

The fourth proportional to 7,939.07, 10,955.79 and 4,402.20 is: 6,074.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.07 : 10,955.79 = 4,402.20 : x
  2. Step 2: Convert to fraction form
    7,939.07/10,955.79 = 4,402.20/x
  3. Step 3: Cross multiply
    7,939.07x = 10,955.79 × 4,402.20
  4. Step 4: Simplify right side
    7,939.07x = 48,229,578.74
  5. Step 5: Solve for x
    x = 48,229,578.74/7,939.07
  6. Step 6: Final answer
    x = 6,074.97

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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.