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Finding the Fourth Proportional to 5,808.60, 8,719.38 and 2,886.12

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Solution

The fourth proportional to 5,808.60, 8,719.38 and 2,886.12 is: 4,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.60 : 8,719.38 = 2,886.12 : x
  2. Step 2: Convert to fraction form
    5,808.60/8,719.38 = 2,886.12/x
  3. Step 3: Cross multiply
    5,808.60x = 8,719.38 × 2,886.12
  4. Step 4: Simplify right side
    5,808.60x = 25,165,177.01
  5. Step 5: Solve for x
    x = 25,165,177.01/5,808.60
  6. Step 6: Final answer
    x = 4,332.40

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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.