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Finding the Fourth Proportional to 1,865.94, 2,800.08 and 1,266.18

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Solution

The fourth proportional to 1,865.94, 2,800.08 and 1,266.18 is: 1,900.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.94 : 2,800.08 = 1,266.18 : x
  2. Step 2: Convert to fraction form
    1,865.94/2,800.08 = 1,266.18/x
  3. Step 3: Cross multiply
    1,865.94x = 2,800.08 × 1,266.18
  4. Step 4: Simplify right side
    1,865.94x = 3,545,405.29
  5. Step 5: Solve for x
    x = 3,545,405.29/1,865.94
  6. Step 6: Final answer
    x = 1,900.06

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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.