Home / 3,177.54-4,385.21-1,761.39

Finding the Fourth Proportional to 3,177.54, 4,385.21 and 1,761.39

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Solution

The fourth proportional to 3,177.54, 4,385.21 and 1,761.39 is: 2,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.54 : 4,385.21 = 1,761.39 : x
  2. Step 2: Convert to fraction form
    3,177.54/4,385.21 = 1,761.39/x
  3. Step 3: Cross multiply
    3,177.54x = 4,385.21 × 1,761.39
  4. Step 4: Simplify right side
    3,177.54x = 7,724,056.23
  5. Step 5: Solve for x
    x = 7,724,056.23/3,177.54
  6. Step 6: Final answer
    x = 2,430.83

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1.5x scale

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.