Home / 9,215.80-13,823.70-2,641.60

Finding the Fourth Proportional to 9,215.80, 13,823.70 and 2,641.60

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Solution

The fourth proportional to 9,215.80, 13,823.70 and 2,641.60 is: 3,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.80 : 13,823.70 = 2,641.60 : x
  2. Step 2: Convert to fraction form
    9,215.80/13,823.70 = 2,641.60/x
  3. Step 3: Cross multiply
    9,215.80x = 13,823.70 × 2,641.60
  4. Step 4: Simplify right side
    9,215.80x = 36,516,685.92
  5. Step 5: Solve for x
    x = 36,516,685.92/9,215.80
  6. Step 6: Final answer
    x = 3,962.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.