Home / 4,943.40-7,415.28-2,168.70

Finding the Fourth Proportional to 4,943.40, 7,415.28 and 2,168.70

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Solution

The fourth proportional to 4,943.40, 7,415.28 and 2,168.70 is: 3,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.40 : 7,415.28 = 2,168.70 : x
  2. Step 2: Convert to fraction form
    4,943.40/7,415.28 = 2,168.70/x
  3. Step 3: Cross multiply
    4,943.40x = 7,415.28 × 2,168.70
  4. Step 4: Simplify right side
    4,943.40x = 16,081,517.74
  5. Step 5: Solve for x
    x = 16,081,517.74/4,943.40
  6. Step 6: Final answer
    x = 3,253.13

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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.