Home / 5,242.83-7,869.11-2,647.59

Finding the Fourth Proportional to 5,242.83, 7,869.11 and 2,647.59

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Solution

The fourth proportional to 5,242.83, 7,869.11 and 2,647.59 is: 3,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.83 : 7,869.11 = 2,647.59 : x
  2. Step 2: Convert to fraction form
    5,242.83/7,869.11 = 2,647.59/x
  3. Step 3: Cross multiply
    5,242.83x = 7,869.11 × 2,647.59
  4. Step 4: Simplify right side
    5,242.83x = 20,834,163.71
  5. Step 5: Solve for x
    x = 20,834,163.71/5,242.83
  6. Step 6: Final answer
    x = 3,973.84

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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.