Home / 3,177.60-4,767.81-1,715.05

Finding the Fourth Proportional to 3,177.60, 4,767.81 and 1,715.05

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Solution

The fourth proportional to 3,177.60, 4,767.81 and 1,715.05 is: 2,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.60 : 4,767.81 = 1,715.05 : x
  2. Step 2: Convert to fraction form
    3,177.60/4,767.81 = 1,715.05/x
  3. Step 3: Cross multiply
    3,177.60x = 4,767.81 × 1,715.05
  4. Step 4: Simplify right side
    3,177.60x = 8,177,028.31
  5. Step 5: Solve for x
    x = 8,177,028.31/3,177.60
  6. Step 6: Final answer
    x = 2,573.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.