Home / 7,864.05-10,851.88-4,278.97

Finding the Fourth Proportional to 7,864.05, 10,851.88 and 4,278.97

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Solution

The fourth proportional to 7,864.05, 10,851.88 and 4,278.97 is: 5,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.05 : 10,851.88 = 4,278.97 : x
  2. Step 2: Convert to fraction form
    7,864.05/10,851.88 = 4,278.97/x
  3. Step 3: Cross multiply
    7,864.05x = 10,851.88 × 4,278.97
  4. Step 4: Simplify right side
    7,864.05x = 46,434,868.96
  5. Step 5: Solve for x
    x = 46,434,868.96/7,864.05
  6. Step 6: Final answer
    x = 5,904.70

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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.