Home / 3,246.64-4,480.04-1,988.05

Finding the Fourth Proportional to 3,246.64, 4,480.04 and 1,988.05

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Solution

The fourth proportional to 3,246.64, 4,480.04 and 1,988.05 is: 2,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.64 : 4,480.04 = 1,988.05 : x
  2. Step 2: Convert to fraction form
    3,246.64/4,480.04 = 1,988.05/x
  3. Step 3: Cross multiply
    3,246.64x = 4,480.04 × 1,988.05
  4. Step 4: Simplify right side
    3,246.64x = 8,906,549.91
  5. Step 5: Solve for x
    x = 8,906,549.91/3,246.64
  6. Step 6: Final answer
    x = 2,743.31

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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.