Home / 4,738.50-7,107.75-1,275.75

Finding the Fourth Proportional to 4,738.50, 7,107.75 and 1,275.75

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Solution

The fourth proportional to 4,738.50, 7,107.75 and 1,275.75 is: 1,913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738.50 : 7,107.75 = 1,275.75 : x
  2. Step 2: Convert to fraction form
    4,738.50/7,107.75 = 1,275.75/x
  3. Step 3: Cross multiply
    4,738.50x = 7,107.75 × 1,275.75
  4. Step 4: Simplify right side
    4,738.50x = 9,067,712.06
  5. Step 5: Solve for x
    x = 9,067,712.06/4,738.50
  6. Step 6: Final answer
    x = 1,913.63

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Similar ratio
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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.