Home / 1,952.24-2,928.36-491.39

Finding the Fourth Proportional to 1,952.24, 2,928.36 and 491.39

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Solution

The fourth proportional to 1,952.24, 2,928.36 and 491.39 is: 737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,952.24 : 2,928.36 = 491.39 : x
  2. Step 2: Convert to fraction form
    1,952.24/2,928.36 = 491.39/x
  3. Step 3: Cross multiply
    1,952.24x = 2,928.36 × 491.39
  4. Step 4: Simplify right side
    1,952.24x = 1,438,966.82
  5. Step 5: Solve for x
    x = 1,438,966.82/1,952.24
  6. Step 6: Final answer
    x = 737.09

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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.