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Finding the Fourth Proportional to 1,801.93, 2,486.68 and 1,005.32

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Solution

The fourth proportional to 1,801.93, 2,486.68 and 1,005.32 is: 1,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.93 : 2,486.68 = 1,005.32 : x
  2. Step 2: Convert to fraction form
    1,801.93/2,486.68 = 1,005.32/x
  3. Step 3: Cross multiply
    1,801.93x = 2,486.68 × 1,005.32
  4. Step 4: Simplify right side
    1,801.93x = 2,499,909.14
  5. Step 5: Solve for x
    x = 2,499,909.14/1,801.93
  6. Step 6: Final answer
    x = 1,387.35

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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.