Home / 3,097.76-4,276.78-2,037.20

Finding the Fourth Proportional to 3,097.76, 4,276.78 and 2,037.20

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Solution

The fourth proportional to 3,097.76, 4,276.78 and 2,037.20 is: 2,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.76 : 4,276.78 = 2,037.20 : x
  2. Step 2: Convert to fraction form
    3,097.76/4,276.78 = 2,037.20/x
  3. Step 3: Cross multiply
    3,097.76x = 4,276.78 × 2,037.20
  4. Step 4: Simplify right side
    3,097.76x = 8,712,656.22
  5. Step 5: Solve for x
    x = 8,712,656.22/3,097.76
  6. Step 6: Final answer
    x = 2,812.57

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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.