Home / 5,140.06-7,709.50-1,442.59

Finding the Fourth Proportional to 5,140.06, 7,709.50 and 1,442.59

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Solution

The fourth proportional to 5,140.06, 7,709.50 and 1,442.59 is: 2,163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.06 : 7,709.50 = 1,442.59 : x
  2. Step 2: Convert to fraction form
    5,140.06/7,709.50 = 1,442.59/x
  3. Step 3: Cross multiply
    5,140.06x = 7,709.50 × 1,442.59
  4. Step 4: Simplify right side
    5,140.06x = 11,121,647.61
  5. Step 5: Solve for x
    x = 11,121,647.61/5,140.06
  6. Step 6: Final answer
    x = 2,163.72

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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.