Home / 3,261.50-4,501.68-2,143.95

Finding the Fourth Proportional to 3,261.50, 4,501.68 and 2,143.95

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Solution

The fourth proportional to 3,261.50, 4,501.68 and 2,143.95 is: 2,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.50 : 4,501.68 = 2,143.95 : x
  2. Step 2: Convert to fraction form
    3,261.50/4,501.68 = 2,143.95/x
  3. Step 3: Cross multiply
    3,261.50x = 4,501.68 × 2,143.95
  4. Step 4: Simplify right side
    3,261.50x = 9,651,376.84
  5. Step 5: Solve for x
    x = 9,651,376.84/3,261.50
  6. Step 6: Final answer
    x = 2,959.19

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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.