Home / 5,140.28-7,710.26-2,177.94

Finding the Fourth Proportional to 5,140.28, 7,710.26 and 2,177.94

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Solution

The fourth proportional to 5,140.28, 7,710.26 and 2,177.94 is: 3,266.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.28 : 7,710.26 = 2,177.94 : x
  2. Step 2: Convert to fraction form
    5,140.28/7,710.26 = 2,177.94/x
  3. Step 3: Cross multiply
    5,140.28x = 7,710.26 × 2,177.94
  4. Step 4: Simplify right side
    5,140.28x = 16,792,483.66
  5. Step 5: Solve for x
    x = 16,792,483.66/5,140.28
  6. Step 6: Final answer
    x = 3,266.84

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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.