Home / 3,025.80-4,538.70-1,385.55

Finding the Fourth Proportional to 3,025.80, 4,538.70 and 1,385.55

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Solution

The fourth proportional to 3,025.80, 4,538.70 and 1,385.55 is: 2,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.80 : 4,538.70 = 1,385.55 : x
  2. Step 2: Convert to fraction form
    3,025.80/4,538.70 = 1,385.55/x
  3. Step 3: Cross multiply
    3,025.80x = 4,538.70 × 1,385.55
  4. Step 4: Simplify right side
    3,025.80x = 6,288,595.79
  5. Step 5: Solve for x
    x = 6,288,595.79/3,025.80
  6. Step 6: Final answer
    x = 2,078.33

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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.