Home / 5,222.10-7,830.30-2,407.88

Finding the Fourth Proportional to 5,222.10, 7,830.30 and 2,407.88

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Solution

The fourth proportional to 5,222.10, 7,830.30 and 2,407.88 is: 3,610.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.10 : 7,830.30 = 2,407.88 : x
  2. Step 2: Convert to fraction form
    5,222.10/7,830.30 = 2,407.88/x
  3. Step 3: Cross multiply
    5,222.10x = 7,830.30 × 2,407.88
  4. Step 4: Simplify right side
    5,222.10x = 18,854,422.76
  5. Step 5: Solve for x
    x = 18,854,422.76/5,222.10
  6. Step 6: Final answer
    x = 3,610.51

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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.