Home / 3,161.88-4,363.71-1,817.69

Finding the Fourth Proportional to 3,161.88, 4,363.71 and 1,817.69

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Solution

The fourth proportional to 3,161.88, 4,363.71 and 1,817.69 is: 2,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.88 : 4,363.71 = 1,817.69 : x
  2. Step 2: Convert to fraction form
    3,161.88/4,363.71 = 1,817.69/x
  3. Step 3: Cross multiply
    3,161.88x = 4,363.71 × 1,817.69
  4. Step 4: Simplify right side
    3,161.88x = 7,931,859.76
  5. Step 5: Solve for x
    x = 7,931,859.76/3,161.88
  6. Step 6: Final answer
    x = 2,508.59

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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.