Home / 3,549.40-4,897.74-1,976.92

Finding the Fourth Proportional to 3,549.40, 4,897.74 and 1,976.92

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Solution

The fourth proportional to 3,549.40, 4,897.74 and 1,976.92 is: 2,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.40 : 4,897.74 = 1,976.92 : x
  2. Step 2: Convert to fraction form
    3,549.40/4,897.74 = 1,976.92/x
  3. Step 3: Cross multiply
    3,549.40x = 4,897.74 × 1,976.92
  4. Step 4: Simplify right side
    3,549.40x = 9,682,440.16
  5. Step 5: Solve for x
    x = 9,682,440.16/3,549.40
  6. Step 6: Final answer
    x = 2,727.91

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.