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Finding the Fourth Proportional to 7,807.88, 10,774.50 and 4,270.88

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Solution

The fourth proportional to 7,807.88, 10,774.50 and 4,270.88 is: 5,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.88 : 10,774.50 = 4,270.88 : x
  2. Step 2: Convert to fraction form
    7,807.88/10,774.50 = 4,270.88/x
  3. Step 3: Cross multiply
    7,807.88x = 10,774.50 × 4,270.88
  4. Step 4: Simplify right side
    7,807.88x = 46,016,596.56
  5. Step 5: Solve for x
    x = 46,016,596.56/7,807.88
  6. Step 6: Final answer
    x = 5,893.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.