Home / 5,116.91-7,062.05-2,878.88

Finding the Fourth Proportional to 5,116.91, 7,062.05 and 2,878.88

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Solution

The fourth proportional to 5,116.91, 7,062.05 and 2,878.88 is: 3,973.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.91 : 7,062.05 = 2,878.88 : x
  2. Step 2: Convert to fraction form
    5,116.91/7,062.05 = 2,878.88/x
  3. Step 3: Cross multiply
    5,116.91x = 7,062.05 × 2,878.88
  4. Step 4: Simplify right side
    5,116.91x = 20,330,744.80
  5. Step 5: Solve for x
    x = 20,330,744.80/5,116.91
  6. Step 6: Final answer
    x = 3,973.25

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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.