Home / 7,939.65-10,957.15-4,402.78

Finding the Fourth Proportional to 7,939.65, 10,957.15 and 4,402.78

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Solution

The fourth proportional to 7,939.65, 10,957.15 and 4,402.78 is: 6,076.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.65 : 10,957.15 = 4,402.78 : x
  2. Step 2: Convert to fraction form
    7,939.65/10,957.15 = 4,402.78/x
  3. Step 3: Cross multiply
    7,939.65x = 10,957.15 × 4,402.78
  4. Step 4: Simplify right side
    7,939.65x = 48,241,920.88
  5. Step 5: Solve for x
    x = 48,241,920.88/7,939.65
  6. Step 6: Final answer
    x = 6,076.08

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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.