Home / 3,101.49-4,280.58-2,998.94

Finding the Fourth Proportional to 3,101.49, 4,280.58 and 2,998.94

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Solution

The fourth proportional to 3,101.49, 4,280.58 and 2,998.94 is: 4,139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.49 : 4,280.58 = 2,998.94 : x
  2. Step 2: Convert to fraction form
    3,101.49/4,280.58 = 2,998.94/x
  3. Step 3: Cross multiply
    3,101.49x = 4,280.58 × 2,998.94
  4. Step 4: Simplify right side
    3,101.49x = 12,837,181.18
  5. Step 5: Solve for x
    x = 12,837,181.18/3,101.49
  6. Step 6: Final answer
    x = 4,139.04

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Half scale
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Double scale
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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.