Home / 3,037.12-4,192.15-1,778.47

Finding the Fourth Proportional to 3,037.12, 4,192.15 and 1,778.47

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Solution

The fourth proportional to 3,037.12, 4,192.15 and 1,778.47 is: 2,454.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,037.12 : 4,192.15 = 1,778.47 : x
  2. Step 2: Convert to fraction form
    3,037.12/4,192.15 = 1,778.47/x
  3. Step 3: Cross multiply
    3,037.12x = 4,192.15 × 1,778.47
  4. Step 4: Simplify right side
    3,037.12x = 7,455,613.01
  5. Step 5: Solve for x
    x = 7,455,613.01/3,037.12
  6. Step 6: Final answer
    x = 2,454.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.