Home / 5,222.61-7,824.11-2,587.05

Finding the Fourth Proportional to 5,222.61, 7,824.11 and 2,587.05

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Solution

The fourth proportional to 5,222.61, 7,824.11 and 2,587.05 is: 3,875.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.61 : 7,824.11 = 2,587.05 : x
  2. Step 2: Convert to fraction form
    5,222.61/7,824.11 = 2,587.05/x
  3. Step 3: Cross multiply
    5,222.61x = 7,824.11 × 2,587.05
  4. Step 4: Simplify right side
    5,222.61x = 20,241,350.84
  5. Step 5: Solve for x
    x = 20,241,350.84/5,222.61
  6. Step 6: Final answer
    x = 3,875.72

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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.