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Finding the Fourth Proportional to 1,801.76, 2,486.28 and 1,103

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Solution

The fourth proportional to 1,801.76, 2,486.28 and 1,103 is: 1,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.76 : 2,486.28 = 1,103 : x
  2. Step 2: Convert to fraction form
    1,801.76/2,486.28 = 1,103/x
  3. Step 3: Cross multiply
    1,801.76x = 2,486.28 × 1,103
  4. Step 4: Simplify right side
    1,801.76x = 2,742,366.84
  5. Step 5: Solve for x
    x = 2,742,366.84/1,801.76
  6. Step 6: Final answer
    x = 1,522.05

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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.