Home / 3,513.38-4,848.46-2,116.40

Finding the Fourth Proportional to 3,513.38, 4,848.46 and 2,116.40

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Solution

The fourth proportional to 3,513.38, 4,848.46 and 2,116.40 is: 2,920.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.38 : 4,848.46 = 2,116.40 : x
  2. Step 2: Convert to fraction form
    3,513.38/4,848.46 = 2,116.40/x
  3. Step 3: Cross multiply
    3,513.38x = 4,848.46 × 2,116.40
  4. Step 4: Simplify right side
    3,513.38x = 10,261,251.21
  5. Step 5: Solve for x
    x = 10,261,251.21/3,513.38
  6. Step 6: Final answer
    x = 2,920.63

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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.