Home / 3,402.40-4,694.16-2,161.12

Finding the Fourth Proportional to 3,402.40, 4,694.16 and 2,161.12

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Solution

The fourth proportional to 3,402.40, 4,694.16 and 2,161.12 is: 2,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.40 : 4,694.16 = 2,161.12 : x
  2. Step 2: Convert to fraction form
    3,402.40/4,694.16 = 2,161.12/x
  3. Step 3: Cross multiply
    3,402.40x = 4,694.16 × 2,161.12
  4. Step 4: Simplify right side
    3,402.40x = 10,144,643.06
  5. Step 5: Solve for x
    x = 10,144,643.06/3,402.40
  6. Step 6: Final answer
    x = 2,981.61

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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.