Home / 3,292.80-4,939.20-1,101.50

Finding the Fourth Proportional to 3,292.80, 4,939.20 and 1,101.50

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Solution

The fourth proportional to 3,292.80, 4,939.20 and 1,101.50 is: 1,652.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292.80 : 4,939.20 = 1,101.50 : x
  2. Step 2: Convert to fraction form
    3,292.80/4,939.20 = 1,101.50/x
  3. Step 3: Cross multiply
    3,292.80x = 4,939.20 × 1,101.50
  4. Step 4: Simplify right side
    3,292.80x = 5,440,528.80
  5. Step 5: Solve for x
    x = 5,440,528.80/3,292.80
  6. Step 6: Final answer
    x = 1,652.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.