Home / 1,642.51-2,266.41-943.75

Finding the Fourth Proportional to 1,642.51, 2,266.41 and 943.75

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Solution

The fourth proportional to 1,642.51, 2,266.41 and 943.75 is: 1,302.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.51 : 2,266.41 = 943.75 : x
  2. Step 2: Convert to fraction form
    1,642.51/2,266.41 = 943.75/x
  3. Step 3: Cross multiply
    1,642.51x = 2,266.41 × 943.75
  4. Step 4: Simplify right side
    1,642.51x = 2,138,924.44
  5. Step 5: Solve for x
    x = 2,138,924.44/1,642.51
  6. Step 6: Final answer
    x = 1,302.23

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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.