Home / 3,155.56-4,356.99-2,037.15

Finding the Fourth Proportional to 3,155.56, 4,356.99 and 2,037.15

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Solution

The fourth proportional to 3,155.56, 4,356.99 and 2,037.15 is: 2,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.56 : 4,356.99 = 2,037.15 : x
  2. Step 2: Convert to fraction form
    3,155.56/4,356.99 = 2,037.15/x
  3. Step 3: Cross multiply
    3,155.56x = 4,356.99 × 2,037.15
  4. Step 4: Simplify right side
    3,155.56x = 8,875,842.18
  5. Step 5: Solve for x
    x = 8,875,842.18/3,155.56
  6. Step 6: Final answer
    x = 2,812.76

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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.