Home / 4,631.31-6,390.09-2,641.14

Finding the Fourth Proportional to 4,631.31, 6,390.09 and 2,641.14

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Solution

The fourth proportional to 4,631.31, 6,390.09 and 2,641.14 is: 3,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.31 : 6,390.09 = 2,641.14 : x
  2. Step 2: Convert to fraction form
    4,631.31/6,390.09 = 2,641.14/x
  3. Step 3: Cross multiply
    4,631.31x = 6,390.09 × 2,641.14
  4. Step 4: Simplify right side
    4,631.31x = 16,877,122.30
  5. Step 5: Solve for x
    x = 16,877,122.30/4,631.31
  6. Step 6: Final answer
    x = 3,644.14

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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.