Home / 3,177.69-4,385.37-1,761.41

Finding the Fourth Proportional to 3,177.69, 4,385.37 and 1,761.41

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Solution

The fourth proportional to 3,177.69, 4,385.37 and 1,761.41 is: 2,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.69 : 4,385.37 = 1,761.41 : x
  2. Step 2: Convert to fraction form
    3,177.69/4,385.37 = 1,761.41/x
  3. Step 3: Cross multiply
    3,177.69x = 4,385.37 × 1,761.41
  4. Step 4: Simplify right side
    3,177.69x = 7,724,437.28
  5. Step 5: Solve for x
    x = 7,724,437.28/3,177.69
  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.