Home / 4,908.80-7,351.05-3,151.10

Finding the Fourth Proportional to 4,908.80, 7,351.05 and 3,151.10

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Solution

The fourth proportional to 4,908.80, 7,351.05 and 3,151.10 is: 4,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.80 : 7,351.05 = 3,151.10 : x
  2. Step 2: Convert to fraction form
    4,908.80/7,351.05 = 3,151.10/x
  3. Step 3: Cross multiply
    4,908.80x = 7,351.05 × 3,151.10
  4. Step 4: Simplify right side
    4,908.80x = 23,163,893.66
  5. Step 5: Solve for x
    x = 23,163,893.66/4,908.80
  6. Step 6: Final answer
    x = 4,718.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.