Home / 1,603.19-2,401.56-1,274.66

Finding the Fourth Proportional to 1,603.19, 2,401.56 and 1,274.66

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Solution

The fourth proportional to 1,603.19, 2,401.56 and 1,274.66 is: 1,909.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.19 : 2,401.56 = 1,274.66 : x
  2. Step 2: Convert to fraction form
    1,603.19/2,401.56 = 1,274.66/x
  3. Step 3: Cross multiply
    1,603.19x = 2,401.56 × 1,274.66
  4. Step 4: Simplify right side
    1,603.19x = 3,061,172.47
  5. Step 5: Solve for x
    x = 3,061,172.47/1,603.19
  6. Step 6: Final answer
    x = 1,909.43

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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.