Home / 3,155.92-4,355.04-1,758.80

Finding the Fourth Proportional to 3,155.92, 4,355.04 and 1,758.80

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Solution

The fourth proportional to 3,155.92, 4,355.04 and 1,758.80 is: 2,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.92 : 4,355.04 = 1,758.80 : x
  2. Step 2: Convert to fraction form
    3,155.92/4,355.04 = 1,758.80/x
  3. Step 3: Cross multiply
    3,155.92x = 4,355.04 × 1,758.80
  4. Step 4: Simplify right side
    3,155.92x = 7,659,644.35
  5. Step 5: Solve for x
    x = 7,659,644.35/3,155.92
  6. Step 6: Final answer
    x = 2,427.07

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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.