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Finding the Fourth Proportional to 1,326.63, 1,986.30 and 1,001.01

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Solution

The fourth proportional to 1,326.63, 1,986.30 and 1,001.01 is: 1,498.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.63 : 1,986.30 = 1,001.01 : x
  2. Step 2: Convert to fraction form
    1,326.63/1,986.30 = 1,001.01/x
  3. Step 3: Cross multiply
    1,326.63x = 1,986.30 × 1,001.01
  4. Step 4: Simplify right side
    1,326.63x = 1,988,306.16
  5. Step 5: Solve for x
    x = 1,988,306.16/1,326.63
  6. Step 6: Final answer
    x = 1,498.76

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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.