Home / 3,152.80-4,352.40-1,974.52

Finding the Fourth Proportional to 3,152.80, 4,352.40 and 1,974.52

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Solution

The fourth proportional to 3,152.80, 4,352.40 and 1,974.52 is: 2,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.80 : 4,352.40 = 1,974.52 : x
  2. Step 2: Convert to fraction form
    3,152.80/4,352.40 = 1,974.52/x
  3. Step 3: Cross multiply
    3,152.80x = 4,352.40 × 1,974.52
  4. Step 4: Simplify right side
    3,152.80x = 8,593,900.85
  5. Step 5: Solve for x
    x = 8,593,900.85/3,152.80
  6. Step 6: Final answer
    x = 2,725.80

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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.