Home / 3,156.43-4,355.87-1,759.18

Finding the Fourth Proportional to 3,156.43, 4,355.87 and 1,759.18

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Solution

The fourth proportional to 3,156.43, 4,355.87 and 1,759.18 is: 2,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.43 : 4,355.87 = 1,759.18 : x
  2. Step 2: Convert to fraction form
    3,156.43/4,355.87 = 1,759.18/x
  3. Step 3: Cross multiply
    3,156.43x = 4,355.87 × 1,759.18
  4. Step 4: Simplify right side
    3,156.43x = 7,662,739.70
  5. Step 5: Solve for x
    x = 7,662,739.70/3,156.43
  6. Step 6: Final answer
    x = 2,427.66

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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.