Home / 2,440.98-3,368.60-1,378.55

Finding the Fourth Proportional to 2,440.98, 3,368.60 and 1,378.55

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Solution

The fourth proportional to 2,440.98, 3,368.60 and 1,378.55 is: 1,902.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.98 : 3,368.60 = 1,378.55 : x
  2. Step 2: Convert to fraction form
    2,440.98/3,368.60 = 1,378.55/x
  3. Step 3: Cross multiply
    2,440.98x = 3,368.60 × 1,378.55
  4. Step 4: Simplify right side
    2,440.98x = 4,643,783.53
  5. Step 5: Solve for x
    x = 4,643,783.53/2,440.98
  6. Step 6: Final answer
    x = 1,902.43

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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.