Home / 3,247.10-4,481.08-1,988.13

Finding the Fourth Proportional to 3,247.10, 4,481.08 and 1,988.13

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Solution

The fourth proportional to 3,247.10, 4,481.08 and 1,988.13 is: 2,743.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.10 : 4,481.08 = 1,988.13 : x
  2. Step 2: Convert to fraction form
    3,247.10/4,481.08 = 1,988.13/x
  3. Step 3: Cross multiply
    3,247.10x = 4,481.08 × 1,988.13
  4. Step 4: Simplify right side
    3,247.10x = 8,908,969.58
  5. Step 5: Solve for x
    x = 8,908,969.58/3,247.10
  6. Step 6: Final answer
    x = 2,743.67

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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.