Home / 3,747.28-5,615.64-1,770.80

Finding the Fourth Proportional to 3,747.28, 5,615.64 and 1,770.80

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Solution

The fourth proportional to 3,747.28, 5,615.64 and 1,770.80 is: 2,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.28 : 5,615.64 = 1,770.80 : x
  2. Step 2: Convert to fraction form
    3,747.28/5,615.64 = 1,770.80/x
  3. Step 3: Cross multiply
    3,747.28x = 5,615.64 × 1,770.80
  4. Step 4: Simplify right side
    3,747.28x = 9,944,175.31
  5. Step 5: Solve for x
    x = 9,944,175.31/3,747.28
  6. Step 6: Final answer
    x = 2,653.70

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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.