Home / 3,747.59-5,618.95-1,991.46

Finding the Fourth Proportional to 3,747.59, 5,618.95 and 1,991.46

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Solution

The fourth proportional to 3,747.59, 5,618.95 and 1,991.46 is: 2,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.59 : 5,618.95 = 1,991.46 : x
  2. Step 2: Convert to fraction form
    3,747.59/5,618.95 = 1,991.46/x
  3. Step 3: Cross multiply
    3,747.59x = 5,618.95 × 1,991.46
  4. Step 4: Simplify right side
    3,747.59x = 11,189,930.26
  5. Step 5: Solve for x
    x = 11,189,930.26/3,747.59
  6. Step 6: Final answer
    x = 2,985.90

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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.