Home / 5,252.09-7,876.41-1,919.57

Finding the Fourth Proportional to 5,252.09, 7,876.41 and 1,919.57

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Solution

The fourth proportional to 5,252.09, 7,876.41 and 1,919.57 is: 2,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.09 : 7,876.41 = 1,919.57 : x
  2. Step 2: Convert to fraction form
    5,252.09/7,876.41 = 1,919.57/x
  3. Step 3: Cross multiply
    5,252.09x = 7,876.41 × 1,919.57
  4. Step 4: Simplify right side
    5,252.09x = 15,119,280.96
  5. Step 5: Solve for x
    x = 15,119,280.96/5,252.09
  6. Step 6: Final answer
    x = 2,878.72

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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.