Home / 5,220.30-7,824.69-4,125.90

Finding the Fourth Proportional to 5,220.30, 7,824.69 and 4,125.90

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Solution

The fourth proportional to 5,220.30, 7,824.69 and 4,125.90 is: 6,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.30 : 7,824.69 = 4,125.90 : x
  2. Step 2: Convert to fraction form
    5,220.30/7,824.69 = 4,125.90/x
  3. Step 3: Cross multiply
    5,220.30x = 7,824.69 × 4,125.90
  4. Step 4: Simplify right side
    5,220.30x = 32,283,888.47
  5. Step 5: Solve for x
    x = 32,283,888.47/5,220.30
  6. Step 6: Final answer
    x = 6,184.30

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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.