Home / 2,280.98-3,160.76-2,142.26

Finding the Fourth Proportional to 2,280.98, 3,160.76 and 2,142.26

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Solution

The fourth proportional to 2,280.98, 3,160.76 and 2,142.26 is: 2,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.98 : 3,160.76 = 2,142.26 : x
  2. Step 2: Convert to fraction form
    2,280.98/3,160.76 = 2,142.26/x
  3. Step 3: Cross multiply
    2,280.98x = 3,160.76 × 2,142.26
  4. Step 4: Simplify right side
    2,280.98x = 6,771,169.72
  5. Step 5: Solve for x
    x = 6,771,169.72/2,280.98
  6. Step 6: Final answer
    x = 2,968.54

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.