Home / 2,480.40-3,722.40-1,937.25

Finding the Fourth Proportional to 2,480.40, 3,722.40 and 1,937.25

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Solution

The fourth proportional to 2,480.40, 3,722.40 and 1,937.25 is: 2,907.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.40 : 3,722.40 = 1,937.25 : x
  2. Step 2: Convert to fraction form
    2,480.40/3,722.40 = 1,937.25/x
  3. Step 3: Cross multiply
    2,480.40x = 3,722.40 × 1,937.25
  4. Step 4: Simplify right side
    2,480.40x = 7,211,219.40
  5. Step 5: Solve for x
    x = 7,211,219.40/2,480.40
  6. Step 6: Final answer
    x = 2,907.28

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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.