Home / 2,377.21-3,280.74-1,369.23

Finding the Fourth Proportional to 2,377.21, 3,280.74 and 1,369.23

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Solution

The fourth proportional to 2,377.21, 3,280.74 and 1,369.23 is: 1,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,377.21 : 3,280.74 = 1,369.23 : x
  2. Step 2: Convert to fraction form
    2,377.21/3,280.74 = 1,369.23/x
  3. Step 3: Cross multiply
    2,377.21x = 3,280.74 × 1,369.23
  4. Step 4: Simplify right side
    2,377.21x = 4,492,087.63
  5. Step 5: Solve for x
    x = 4,492,087.63/2,377.21
  6. Step 6: Final answer
    x = 1,889.65

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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.