Home / 1,603.31-2,398.64-1,214.43

Finding the Fourth Proportional to 1,603.31, 2,398.64 and 1,214.43

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Solution

The fourth proportional to 1,603.31, 2,398.64 and 1,214.43 is: 1,816.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.31 : 2,398.64 = 1,214.43 : x
  2. Step 2: Convert to fraction form
    1,603.31/2,398.64 = 1,214.43/x
  3. Step 3: Cross multiply
    1,603.31x = 2,398.64 × 1,214.43
  4. Step 4: Simplify right side
    1,603.31x = 2,912,983.34
  5. Step 5: Solve for x
    x = 2,912,983.34/1,603.31
  6. Step 6: Final answer
    x = 1,816.86

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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.