Home / 1,983.30-2,974.28-1,058.36

Finding the Fourth Proportional to 1,983.30, 2,974.28 and 1,058.36

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Solution

The fourth proportional to 1,983.30, 2,974.28 and 1,058.36 is: 1,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.30 : 2,974.28 = 1,058.36 : x
  2. Step 2: Convert to fraction form
    1,983.30/2,974.28 = 1,058.36/x
  3. Step 3: Cross multiply
    1,983.30x = 2,974.28 × 1,058.36
  4. Step 4: Simplify right side
    1,983.30x = 3,147,838.82
  5. Step 5: Solve for x
    x = 3,147,838.82/1,983.30
  6. Step 6: Final answer
    x = 1,587.17

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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.