Home / 3,712.73-5,123.08-2,220.10

Finding the Fourth Proportional to 3,712.73, 5,123.08 and 2,220.10

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Solution

The fourth proportional to 3,712.73, 5,123.08 and 2,220.10 is: 3,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.73 : 5,123.08 = 2,220.10 : x
  2. Step 2: Convert to fraction form
    3,712.73/5,123.08 = 2,220.10/x
  3. Step 3: Cross multiply
    3,712.73x = 5,123.08 × 2,220.10
  4. Step 4: Simplify right side
    3,712.73x = 11,373,776.06
  5. Step 5: Solve for x
    x = 11,373,776.06/3,712.73
  6. Step 6: Final answer
    x = 3,063.45

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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.