Home / 3,158.88-4,359-1,761.60

Finding the Fourth Proportional to 3,158.88, 4,359 and 1,761.60

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Solution

The fourth proportional to 3,158.88, 4,359 and 1,761.60 is: 2,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.88 : 4,359 = 1,761.60 : x
  2. Step 2: Convert to fraction form
    3,158.88/4,359 = 1,761.60/x
  3. Step 3: Cross multiply
    3,158.88x = 4,359 × 1,761.60
  4. Step 4: Simplify right side
    3,158.88x = 7,678,814.40
  5. Step 5: Solve for x
    x = 7,678,814.40/3,158.88
  6. Step 6: Final answer
    x = 2,430.87

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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.