Home / 5,147.10-7,102.92-2,908.95

Finding the Fourth Proportional to 5,147.10, 7,102.92 and 2,908.95

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Solution

The fourth proportional to 5,147.10, 7,102.92 and 2,908.95 is: 4,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.10 : 7,102.92 = 2,908.95 : x
  2. Step 2: Convert to fraction form
    5,147.10/7,102.92 = 2,908.95/x
  3. Step 3: Cross multiply
    5,147.10x = 7,102.92 × 2,908.95
  4. Step 4: Simplify right side
    5,147.10x = 20,662,039.13
  5. Step 5: Solve for x
    x = 20,662,039.13/5,147.10
  6. Step 6: Final answer
    x = 4,014.31

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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.