Home / 5,775.27-8,661.78-1,878.75

Finding the Fourth Proportional to 5,775.27, 8,661.78 and 1,878.75

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Solution

The fourth proportional to 5,775.27, 8,661.78 and 1,878.75 is: 2,817.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.27 : 8,661.78 = 1,878.75 : x
  2. Step 2: Convert to fraction form
    5,775.27/8,661.78 = 1,878.75/x
  3. Step 3: Cross multiply
    5,775.27x = 8,661.78 × 1,878.75
  4. Step 4: Simplify right side
    5,775.27x = 16,273,319.18
  5. Step 5: Solve for x
    x = 16,273,319.18/5,775.27
  6. Step 6: Final answer
    x = 2,817.76

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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.