Home / 5,016.60-6,920.91-2,891.16

Finding the Fourth Proportional to 5,016.60, 6,920.91 and 2,891.16

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Solution

The fourth proportional to 5,016.60, 6,920.91 and 2,891.16 is: 3,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,016.60 : 6,920.91 = 2,891.16 : x
  2. Step 2: Convert to fraction form
    5,016.60/6,920.91 = 2,891.16/x
  3. Step 3: Cross multiply
    5,016.60x = 6,920.91 × 2,891.16
  4. Step 4: Simplify right side
    5,016.60x = 20,009,458.16
  5. Step 5: Solve for x
    x = 20,009,458.16/5,016.60
  6. Step 6: Final answer
    x = 3,988.65

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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.