Home / 3,765.73-5,646.55-2,990.71

Finding the Fourth Proportional to 3,765.73, 5,646.55 and 2,990.71

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Solution

The fourth proportional to 3,765.73, 5,646.55 and 2,990.71 is: 4,484.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.73 : 5,646.55 = 2,990.71 : x
  2. Step 2: Convert to fraction form
    3,765.73/5,646.55 = 2,990.71/x
  3. Step 3: Cross multiply
    3,765.73x = 5,646.55 × 2,990.71
  4. Step 4: Simplify right side
    3,765.73x = 16,887,178.60
  5. Step 5: Solve for x
    x = 16,887,178.60/3,765.73
  6. Step 6: Final answer
    x = 4,484.44

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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.