Home / 3,246.26-4,478.84-1,985.97

Finding the Fourth Proportional to 3,246.26, 4,478.84 and 1,985.97

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Solution

The fourth proportional to 3,246.26, 4,478.84 and 1,985.97 is: 2,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.26 : 4,478.84 = 1,985.97 : x
  2. Step 2: Convert to fraction form
    3,246.26/4,478.84 = 1,985.97/x
  3. Step 3: Cross multiply
    3,246.26x = 4,478.84 × 1,985.97
  4. Step 4: Simplify right side
    3,246.26x = 8,894,856.19
  5. Step 5: Solve for x
    x = 8,894,856.19/3,246.26
  6. Step 6: Final answer
    x = 2,740.04

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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.