Home / 5,085.36-7,016.94-2,989.88

Finding the Fourth Proportional to 5,085.36, 7,016.94 and 2,989.88

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Solution

The fourth proportional to 5,085.36, 7,016.94 and 2,989.88 is: 4,125.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.36 : 7,016.94 = 2,989.88 : x
  2. Step 2: Convert to fraction form
    5,085.36/7,016.94 = 2,989.88/x
  3. Step 3: Cross multiply
    5,085.36x = 7,016.94 × 2,989.88
  4. Step 4: Simplify right side
    5,085.36x = 20,979,808.57
  5. Step 5: Solve for x
    x = 20,979,808.57/5,085.36
  6. Step 6: Final answer
    x = 4,125.53

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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.