Home / 3,801.74-5,246.44-2,123.21

Finding the Fourth Proportional to 3,801.74, 5,246.44 and 2,123.21

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Solution

The fourth proportional to 3,801.74, 5,246.44 and 2,123.21 is: 2,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.74 : 5,246.44 = 2,123.21 : x
  2. Step 2: Convert to fraction form
    3,801.74/5,246.44 = 2,123.21/x
  3. Step 3: Cross multiply
    3,801.74x = 5,246.44 × 2,123.21
  4. Step 4: Simplify right side
    3,801.74x = 11,139,301.68
  5. Step 5: Solve for x
    x = 11,139,301.68/3,801.74
  6. Step 6: Final answer
    x = 2,930.06

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Half scale
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Double scale
Find fourth proportional to 3,802.74, 5,247.82 and 2,124.21
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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.