Home / 1,952.81-2,928.30-1,131.32

Finding the Fourth Proportional to 1,952.81, 2,928.30 and 1,131.32

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Solution

The fourth proportional to 1,952.81, 2,928.30 and 1,131.32 is: 1,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,952.81 : 2,928.30 = 1,131.32 : x
  2. Step 2: Convert to fraction form
    1,952.81/2,928.30 = 1,131.32/x
  3. Step 3: Cross multiply
    1,952.81x = 2,928.30 × 1,131.32
  4. Step 4: Simplify right side
    1,952.81x = 3,312,837.33
  5. Step 5: Solve for x
    x = 3,312,837.33/1,952.81
  6. Step 6: Final answer
    x = 1,696.45

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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.