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Finding the Fourth Proportional to 3,275.22, 4,913.88 and 1,958.76

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Solution

The fourth proportional to 3,275.22, 4,913.88 and 1,958.76 is: 2,938.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.22 : 4,913.88 = 1,958.76 : x
  2. Step 2: Convert to fraction form
    3,275.22/4,913.88 = 1,958.76/x
  3. Step 3: Cross multiply
    3,275.22x = 4,913.88 × 1,958.76
  4. Step 4: Simplify right side
    3,275.22x = 9,625,111.59
  5. Step 5: Solve for x
    x = 9,625,111.59/3,275.22
  6. Step 6: Final answer
    x = 2,938.77

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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.