Home / 1,952.25-2,928.81-617.98

Finding the Fourth Proportional to 1,952.25, 2,928.81 and 617.98

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Solution

The fourth proportional to 1,952.25, 2,928.81 and 617.98 is: 927.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,952.25 : 2,928.81 = 617.98 : x
  2. Step 2: Convert to fraction form
    1,952.25/2,928.81 = 617.98/x
  3. Step 3: Cross multiply
    1,952.25x = 2,928.81 × 617.98
  4. Step 4: Simplify right side
    1,952.25x = 1,809,943.01
  5. Step 5: Solve for x
    x = 1,809,943.01/1,952.25
  6. Step 6: Final answer
    x = 927.11

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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.