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Finding the Fourth Proportional to 5,576.78, 8,362.86 and 1,879.31

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Solution

The fourth proportional to 5,576.78, 8,362.86 and 1,879.31 is: 2,818.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,576.78 : 8,362.86 = 1,879.31 : x
  2. Step 2: Convert to fraction form
    5,576.78/8,362.86 = 1,879.31/x
  3. Step 3: Cross multiply
    5,576.78x = 8,362.86 × 1,879.31
  4. Step 4: Simplify right side
    5,576.78x = 15,716,364.61
  5. Step 5: Solve for x
    x = 15,716,364.61/5,576.78
  6. Step 6: Final answer
    x = 2,818.18

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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.