Home / 3,247.54-4,482.75-1,988.30

Finding the Fourth Proportional to 3,247.54, 4,482.75 and 1,988.30

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Solution

The fourth proportional to 3,247.54, 4,482.75 and 1,988.30 is: 2,744.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.54 : 4,482.75 = 1,988.30 : x
  2. Step 2: Convert to fraction form
    3,247.54/4,482.75 = 1,988.30/x
  3. Step 3: Cross multiply
    3,247.54x = 4,482.75 × 1,988.30
  4. Step 4: Simplify right side
    3,247.54x = 8,913,070.49
  5. Step 5: Solve for x
    x = 8,913,070.49/3,247.54
  6. Step 6: Final answer
    x = 2,744.56

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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.