Home / 8,828.60-13,242.86-2,989.24

Finding the Fourth Proportional to 8,828.60, 13,242.86 and 2,989.24

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Solution

The fourth proportional to 8,828.60, 13,242.86 and 2,989.24 is: 4,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,828.60 : 13,242.86 = 2,989.24 : x
  2. Step 2: Convert to fraction form
    8,828.60/13,242.86 = 2,989.24/x
  3. Step 3: Cross multiply
    8,828.60x = 13,242.86 × 2,989.24
  4. Step 4: Simplify right side
    8,828.60x = 39,586,086.83
  5. Step 5: Solve for x
    x = 39,586,086.83/8,828.60
  6. Step 6: Final answer
    x = 4,483.85

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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.