Home / 3,264.77-4,505.60-1,989.12

Finding the Fourth Proportional to 3,264.77, 4,505.60 and 1,989.12

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Solution

The fourth proportional to 3,264.77, 4,505.60 and 1,989.12 is: 2,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264.77 : 4,505.60 = 1,989.12 : x
  2. Step 2: Convert to fraction form
    3,264.77/4,505.60 = 1,989.12/x
  3. Step 3: Cross multiply
    3,264.77x = 4,505.60 × 1,989.12
  4. Step 4: Simplify right side
    3,264.77x = 8,962,169.13
  5. Step 5: Solve for x
    x = 8,962,169.13/3,264.77
  6. Step 6: Final answer
    x = 2,745.11

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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.