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Finding the Fourth Proportional to 5,774.70, 8,662.80 and 1,877.78

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Solution

The fourth proportional to 5,774.70, 8,662.80 and 1,877.78 is: 2,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.70 : 8,662.80 = 1,877.78 : x
  2. Step 2: Convert to fraction form
    5,774.70/8,662.80 = 1,877.78/x
  3. Step 3: Cross multiply
    5,774.70x = 8,662.80 × 1,877.78
  4. Step 4: Simplify right side
    5,774.70x = 16,266,832.58
  5. Step 5: Solve for x
    x = 16,266,832.58/5,774.70
  6. Step 6: Final answer
    x = 2,816.91

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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.