Home / 1,603.19-2,213.49-1,005.93

Finding the Fourth Proportional to 1,603.19, 2,213.49 and 1,005.93

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Solution

The fourth proportional to 1,603.19, 2,213.49 and 1,005.93 is: 1,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.19 : 2,213.49 = 1,005.93 : x
  2. Step 2: Convert to fraction form
    1,603.19/2,213.49 = 1,005.93/x
  3. Step 3: Cross multiply
    1,603.19x = 2,213.49 × 1,005.93
  4. Step 4: Simplify right side
    1,603.19x = 2,226,616.00
  5. Step 5: Solve for x
    x = 2,226,616.00/1,603.19
  6. Step 6: Final answer
    x = 1,388.87

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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.