Home / 8,580.29-12,870.30-2,736.86

Finding the Fourth Proportional to 8,580.29, 12,870.30 and 2,736.86

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Solution

The fourth proportional to 8,580.29, 12,870.30 and 2,736.86 is: 4,105.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.29 : 12,870.30 = 2,736.86 : x
  2. Step 2: Convert to fraction form
    8,580.29/12,870.30 = 2,736.86/x
  3. Step 3: Cross multiply
    8,580.29x = 12,870.30 × 2,736.86
  4. Step 4: Simplify right side
    8,580.29x = 35,224,209.26
  5. Step 5: Solve for x
    x = 35,224,209.26/8,580.29
  6. Step 6: Final answer
    x = 4,105.25

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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.