Home / 3,801.85-5,246.40-2,123.26

Finding the Fourth Proportional to 3,801.85, 5,246.40 and 2,123.26

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Solution

The fourth proportional to 3,801.85, 5,246.40 and 2,123.26 is: 2,930.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.85 : 5,246.40 = 2,123.26 : x
  2. Step 2: Convert to fraction form
    3,801.85/5,246.40 = 2,123.26/x
  3. Step 3: Cross multiply
    3,801.85x = 5,246.40 × 2,123.26
  4. Step 4: Simplify right side
    3,801.85x = 11,139,471.26
  5. Step 5: Solve for x
    x = 11,139,471.26/3,801.85
  6. Step 6: Final answer
    x = 2,930.01

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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.