Home / 8,440.28-12,656.75-3,242.50

Finding the Fourth Proportional to 8,440.28, 12,656.75 and 3,242.50

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Solution

The fourth proportional to 8,440.28, 12,656.75 and 3,242.50 is: 4,862.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.28 : 12,656.75 = 3,242.50 : x
  2. Step 2: Convert to fraction form
    8,440.28/12,656.75 = 3,242.50/x
  3. Step 3: Cross multiply
    8,440.28x = 12,656.75 × 3,242.50
  4. Step 4: Simplify right side
    8,440.28x = 41,039,511.88
  5. Step 5: Solve for x
    x = 41,039,511.88/8,440.28
  6. Step 6: Final answer
    x = 4,862.34

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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.