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Finding the Fourth Proportional to 2,303, 3,178.18 and 1,255.08

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Solution

The fourth proportional to 2,303, 3,178.18 and 1,255.08 is: 1,732.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303 : 3,178.18 = 1,255.08 : x
  2. Step 2: Convert to fraction form
    2,303/3,178.18 = 1,255.08/x
  3. Step 3: Cross multiply
    2,303x = 3,178.18 × 1,255.08
  4. Step 4: Simplify right side
    2,303x = 3,988,870.15
  5. Step 5: Solve for x
    x = 3,988,870.15/2,303
  6. Step 6: Final answer
    x = 1,732.03

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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.