Home / 3,037.87-4,192.38-1,778.72

Finding the Fourth Proportional to 3,037.87, 4,192.38 and 1,778.72

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Solution

The fourth proportional to 3,037.87, 4,192.38 and 1,778.72 is: 2,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,037.87 : 4,192.38 = 1,778.72 : x
  2. Step 2: Convert to fraction form
    3,037.87/4,192.38 = 1,778.72/x
  3. Step 3: Cross multiply
    3,037.87x = 4,192.38 × 1,778.72
  4. Step 4: Simplify right side
    3,037.87x = 7,457,061.26
  5. Step 5: Solve for x
    x = 7,457,061.26/3,037.87
  6. Step 6: Final answer
    x = 2,454.70

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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.