Home / 2,988.70-4,490.97-1,603.06

Finding the Fourth Proportional to 2,988.70, 4,490.97 and 1,603.06

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Solution

The fourth proportional to 2,988.70, 4,490.97 and 1,603.06 is: 2,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.70 : 4,490.97 = 1,603.06 : x
  2. Step 2: Convert to fraction form
    2,988.70/4,490.97 = 1,603.06/x
  3. Step 3: Cross multiply
    2,988.70x = 4,490.97 × 1,603.06
  4. Step 4: Simplify right side
    2,988.70x = 7,199,294.37
  5. Step 5: Solve for x
    x = 7,199,294.37/2,988.70
  6. Step 6: Final answer
    x = 2,408.84

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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.