Home / 1,952.17-2,928.22-491.32

Finding the Fourth Proportional to 1,952.17, 2,928.22 and 491.32

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Solution

The fourth proportional to 1,952.17, 2,928.22 and 491.32 is: 736.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,952.17 : 2,928.22 = 491.32 : x
  2. Step 2: Convert to fraction form
    1,952.17/2,928.22 = 491.32/x
  3. Step 3: Cross multiply
    1,952.17x = 2,928.22 × 491.32
  4. Step 4: Simplify right side
    1,952.17x = 1,438,693.05
  5. Step 5: Solve for x
    x = 1,438,693.05/1,952.17
  6. Step 6: Final answer
    x = 736.97

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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.