Home / 3,545.80-5,307.90-2,080.60

Finding the Fourth Proportional to 3,545.80, 5,307.90 and 2,080.60

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Solution

The fourth proportional to 3,545.80, 5,307.90 and 2,080.60 is: 3,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.80 : 5,307.90 = 2,080.60 : x
  2. Step 2: Convert to fraction form
    3,545.80/5,307.90 = 2,080.60/x
  3. Step 3: Cross multiply
    3,545.80x = 5,307.90 × 2,080.60
  4. Step 4: Simplify right side
    3,545.80x = 11,043,616.74
  5. Step 5: Solve for x
    x = 11,043,616.74/3,545.80
  6. Step 6: Final answer
    x = 3,114.56

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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.