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Finding the Fourth Proportional to 1,079.02, 1,486.05 and 1,002.48

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Solution

The fourth proportional to 1,079.02, 1,486.05 and 1,002.48 is: 1,380.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.02 : 1,486.05 = 1,002.48 : x
  2. Step 2: Convert to fraction form
    1,079.02/1,486.05 = 1,002.48/x
  3. Step 3: Cross multiply
    1,079.02x = 1,486.05 × 1,002.48
  4. Step 4: Simplify right side
    1,079.02x = 1,489,726.07
  5. Step 5: Solve for x
    x = 1,489,726.07/1,079.02
  6. Step 6: Final answer
    x = 1,380.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.