Home / 8,821.02-13,231.92-2,977.68

Finding the Fourth Proportional to 8,821.02, 13,231.92 and 2,977.68

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Solution

The fourth proportional to 8,821.02, 13,231.92 and 2,977.68 is: 4,466.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.02 : 13,231.92 = 2,977.68 : x
  2. Step 2: Convert to fraction form
    8,821.02/13,231.92 = 2,977.68/x
  3. Step 3: Cross multiply
    8,821.02x = 13,231.92 × 2,977.68
  4. Step 4: Simplify right side
    8,821.02x = 39,400,423.55
  5. Step 5: Solve for x
    x = 39,400,423.55/8,821.02
  6. Step 6: Final answer
    x = 4,466.65

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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.