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Finding the Fourth Proportional to 7,065.95, 10,599.12 and 1,871.82

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Solution

The fourth proportional to 7,065.95, 10,599.12 and 1,871.82 is: 2,807.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.95 : 10,599.12 = 1,871.82 : x
  2. Step 2: Convert to fraction form
    7,065.95/10,599.12 = 1,871.82/x
  3. Step 3: Cross multiply
    7,065.95x = 10,599.12 × 1,871.82
  4. Step 4: Simplify right side
    7,065.95x = 19,839,644.80
  5. Step 5: Solve for x
    x = 19,839,644.80/7,065.95
  6. Step 6: Final answer
    x = 2,807.78

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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.