Home / 3,801.89-5,246.40-2,123.24

Finding the Fourth Proportional to 3,801.89, 5,246.40 and 2,123.24

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Solution

The fourth proportional to 3,801.89, 5,246.40 and 2,123.24 is: 2,929.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.89 : 5,246.40 = 2,123.24 : x
  2. Step 2: Convert to fraction form
    3,801.89/5,246.40 = 2,123.24/x
  3. Step 3: Cross multiply
    3,801.89x = 5,246.40 × 2,123.24
  4. Step 4: Simplify right side
    3,801.89x = 11,139,366.34
  5. Step 5: Solve for x
    x = 11,139,366.34/3,801.89
  6. Step 6: Final answer
    x = 2,929.95

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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.