Home / 8,861.16-13,291.42-2,705

Finding the Fourth Proportional to 8,861.16, 13,291.42 and 2,705

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Solution

The fourth proportional to 8,861.16, 13,291.42 and 2,705 is: 4,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.16 : 13,291.42 = 2,705 : x
  2. Step 2: Convert to fraction form
    8,861.16/13,291.42 = 2,705/x
  3. Step 3: Cross multiply
    8,861.16x = 13,291.42 × 2,705
  4. Step 4: Simplify right side
    8,861.16x = 35,953,291.10
  5. Step 5: Solve for x
    x = 35,953,291.10/8,861.16
  6. Step 6: Final answer
    x = 4,057.40

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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.