Home / 3,177.81-4,385.24-1,761.50

Finding the Fourth Proportional to 3,177.81, 4,385.24 and 1,761.50

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Solution

The fourth proportional to 3,177.81, 4,385.24 and 1,761.50 is: 2,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.81 : 4,385.24 = 1,761.50 : x
  2. Step 2: Convert to fraction form
    3,177.81/4,385.24 = 1,761.50/x
  3. Step 3: Cross multiply
    3,177.81x = 4,385.24 × 1,761.50
  4. Step 4: Simplify right side
    3,177.81x = 7,724,600.26
  5. Step 5: Solve for x
    x = 7,724,600.26/3,177.81
  6. Step 6: Final answer
    x = 2,430.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.