Home / 4,979.04-6,870.48-2,882.88

Finding the Fourth Proportional to 4,979.04, 6,870.48 and 2,882.88

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Solution

The fourth proportional to 4,979.04, 6,870.48 and 2,882.88 is: 3,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.04 : 6,870.48 = 2,882.88 : x
  2. Step 2: Convert to fraction form
    4,979.04/6,870.48 = 2,882.88/x
  3. Step 3: Cross multiply
    4,979.04x = 6,870.48 × 2,882.88
  4. Step 4: Simplify right side
    4,979.04x = 19,806,769.38
  5. Step 5: Solve for x
    x = 19,806,769.38/4,979.04
  6. Step 6: Final answer
    x = 3,978.03

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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.