Home / 1,489.22-2,054.84-964.95

Finding the Fourth Proportional to 1,489.22, 2,054.84 and 964.95

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Solution

The fourth proportional to 1,489.22, 2,054.84 and 964.95 is: 1,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.22 : 2,054.84 = 964.95 : x
  2. Step 2: Convert to fraction form
    1,489.22/2,054.84 = 964.95/x
  3. Step 3: Cross multiply
    1,489.22x = 2,054.84 × 964.95
  4. Step 4: Simplify right side
    1,489.22x = 1,982,813.03
  5. Step 5: Solve for x
    x = 1,982,813.03/1,489.22
  6. Step 6: Final answer
    x = 1,331.45

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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.