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Finding the Fourth Proportional to 2,392.71, 3,302.21 and 1,344.75

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Solution

The fourth proportional to 2,392.71, 3,302.21 and 1,344.75 is: 1,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.71 : 3,302.21 = 1,344.75 : x
  2. Step 2: Convert to fraction form
    2,392.71/3,302.21 = 1,344.75/x
  3. Step 3: Cross multiply
    2,392.71x = 3,302.21 × 1,344.75
  4. Step 4: Simplify right side
    2,392.71x = 4,440,640.17
  5. Step 5: Solve for x
    x = 4,440,640.17/2,392.71
  6. Step 6: Final answer
    x = 1,855.90

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1.5x scale

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.