Home / 3,376.76-4,660.28-1,885.19

Finding the Fourth Proportional to 3,376.76, 4,660.28 and 1,885.19

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Solution

The fourth proportional to 3,376.76, 4,660.28 and 1,885.19 is: 2,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.76 : 4,660.28 = 1,885.19 : x
  2. Step 2: Convert to fraction form
    3,376.76/4,660.28 = 1,885.19/x
  3. Step 3: Cross multiply
    3,376.76x = 4,660.28 × 1,885.19
  4. Step 4: Simplify right side
    3,376.76x = 8,785,513.25
  5. Step 5: Solve for x
    x = 8,785,513.25/3,376.76
  6. Step 6: Final answer
    x = 2,601.76

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Half scale
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Double scale
Find fourth proportional to 3,377.76, 4,661.66 and 1,886.19
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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.