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Finding the Fourth Proportional to 1,026.32, 1,425.88 and 1,014.02

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Solution

The fourth proportional to 1,026.32, 1,425.88 and 1,014.02 is: 1,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.32 : 1,425.88 = 1,014.02 : x
  2. Step 2: Convert to fraction form
    1,026.32/1,425.88 = 1,014.02/x
  3. Step 3: Cross multiply
    1,026.32x = 1,425.88 × 1,014.02
  4. Step 4: Simplify right side
    1,026.32x = 1,445,863.71
  5. Step 5: Solve for x
    x = 1,445,863.71/1,026.32
  6. Step 6: Final answer
    x = 1,408.78

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.