Home / 3,156.18-4,355.37-1,758.66

Finding the Fourth Proportional to 3,156.18, 4,355.37 and 1,758.66

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Solution

The fourth proportional to 3,156.18, 4,355.37 and 1,758.66 is: 2,426.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.18 : 4,355.37 = 1,758.66 : x
  2. Step 2: Convert to fraction form
    3,156.18/4,355.37 = 1,758.66/x
  3. Step 3: Cross multiply
    3,156.18x = 4,355.37 × 1,758.66
  4. Step 4: Simplify right side
    3,156.18x = 7,659,615.00
  5. Step 5: Solve for x
    x = 7,659,615.00/3,156.18
  6. Step 6: Final answer
    x = 2,426.86

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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.