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Finding the Fourth Proportional to 8,810.48, 13,212.96 and 2,886

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Solution

The fourth proportional to 8,810.48, 13,212.96 and 2,886 is: 4,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.48 : 13,212.96 = 2,886 : x
  2. Step 2: Convert to fraction form
    8,810.48/13,212.96 = 2,886/x
  3. Step 3: Cross multiply
    8,810.48x = 13,212.96 × 2,886
  4. Step 4: Simplify right side
    8,810.48x = 38,132,602.56
  5. Step 5: Solve for x
    x = 38,132,602.56/8,810.48
  6. Step 6: Final answer
    x = 4,328.10

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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.