Home / 5,119.16-7,063.02-2,880.90

Finding the Fourth Proportional to 5,119.16, 7,063.02 and 2,880.90

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Solution

The fourth proportional to 5,119.16, 7,063.02 and 2,880.90 is: 3,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.16 : 7,063.02 = 2,880.90 : x
  2. Step 2: Convert to fraction form
    5,119.16/7,063.02 = 2,880.90/x
  3. Step 3: Cross multiply
    5,119.16x = 7,063.02 × 2,880.90
  4. Step 4: Simplify right side
    5,119.16x = 20,347,854.32
  5. Step 5: Solve for x
    x = 20,347,854.32/5,119.16
  6. Step 6: Final answer
    x = 3,974.85

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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.