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Finding the Fourth Proportional to 1,848.76, 2,774.36 and 808.72

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Solution

The fourth proportional to 1,848.76, 2,774.36 and 808.72 is: 1,213.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.76 : 2,774.36 = 808.72 : x
  2. Step 2: Convert to fraction form
    1,848.76/2,774.36 = 808.72/x
  3. Step 3: Cross multiply
    1,848.76x = 2,774.36 × 808.72
  4. Step 4: Simplify right side
    1,848.76x = 2,243,680.42
  5. Step 5: Solve for x
    x = 2,243,680.42/1,848.76
  6. Step 6: Final answer
    x = 1,213.61

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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.