Home / 3,240.07-4,470.19-1,981.94

Finding the Fourth Proportional to 3,240.07, 4,470.19 and 1,981.94

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Solution

The fourth proportional to 3,240.07, 4,470.19 and 1,981.94 is: 2,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.07 : 4,470.19 = 1,981.94 : x
  2. Step 2: Convert to fraction form
    3,240.07/4,470.19 = 1,981.94/x
  3. Step 3: Cross multiply
    3,240.07x = 4,470.19 × 1,981.94
  4. Step 4: Simplify right side
    3,240.07x = 8,859,621.06
  5. Step 5: Solve for x
    x = 8,859,621.06/3,240.07
  6. Step 6: Final answer
    x = 2,734.39

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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.