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Finding the Fourth Proportional to 5,919.18, 8,888.85 and 5,671.50

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Solution

The fourth proportional to 5,919.18, 8,888.85 and 5,671.50 is: 8,516.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.18 : 8,888.85 = 5,671.50 : x
  2. Step 2: Convert to fraction form
    5,919.18/8,888.85 = 5,671.50/x
  3. Step 3: Cross multiply
    5,919.18x = 8,888.85 × 5,671.50
  4. Step 4: Simplify right side
    5,919.18x = 50,413,112.78
  5. Step 5: Solve for x
    x = 50,413,112.78/5,919.18
  6. Step 6: Final answer
    x = 8,516.91

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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.