Home / 3,246.95-4,480.41-1,988.31

Finding the Fourth Proportional to 3,246.95, 4,480.41 and 1,988.31

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Solution

The fourth proportional to 3,246.95, 4,480.41 and 1,988.31 is: 2,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.95 : 4,480.41 = 1,988.31 : x
  2. Step 2: Convert to fraction form
    3,246.95/4,480.41 = 1,988.31/x
  3. Step 3: Cross multiply
    3,246.95x = 4,480.41 × 1,988.31
  4. Step 4: Simplify right side
    3,246.95x = 8,908,468.26
  5. Step 5: Solve for x
    x = 8,908,468.26/3,246.95
  6. Step 6: Final answer
    x = 2,743.64

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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.