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Finding the Fourth Proportional to 1,424.51, 2,135.72 and 602.33

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Solution

The fourth proportional to 1,424.51, 2,135.72 and 602.33 is: 903.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.51 : 2,135.72 = 602.33 : x
  2. Step 2: Convert to fraction form
    1,424.51/2,135.72 = 602.33/x
  3. Step 3: Cross multiply
    1,424.51x = 2,135.72 × 602.33
  4. Step 4: Simplify right side
    1,424.51x = 1,286,394.54
  5. Step 5: Solve for x
    x = 1,286,394.54/1,424.51
  6. Step 6: Final answer
    x = 903.05

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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.