Home / 3,158.75-4,359.08-1,761.47

Finding the Fourth Proportional to 3,158.75, 4,359.08 and 1,761.47

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Solution

The fourth proportional to 3,158.75, 4,359.08 and 1,761.47 is: 2,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.75 : 4,359.08 = 1,761.47 : x
  2. Step 2: Convert to fraction form
    3,158.75/4,359.08 = 1,761.47/x
  3. Step 3: Cross multiply
    3,158.75x = 4,359.08 × 1,761.47
  4. Step 4: Simplify right side
    3,158.75x = 7,678,379.84
  5. Step 5: Solve for x
    x = 7,678,379.84/3,158.75
  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.