Home / 1,003.32-1,374.57-964.44

Finding the Fourth Proportional to 1,003.32, 1,374.57 and 964.44

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Solution

The fourth proportional to 1,003.32, 1,374.57 and 964.44 is: 1,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003.32 : 1,374.57 = 964.44 : x
  2. Step 2: Convert to fraction form
    1,003.32/1,374.57 = 964.44/x
  3. Step 3: Cross multiply
    1,003.32x = 1,374.57 × 964.44
  4. Step 4: Simplify right side
    1,003.32x = 1,325,690.29
  5. Step 5: Solve for x
    x = 1,325,690.29/1,003.32
  6. Step 6: Final answer
    x = 1,321.30

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.