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Finding the Fourth Proportional to 2,392.91, 3,302.90 and 1,448.70

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Solution

The fourth proportional to 2,392.91, 3,302.90 and 1,448.70 is: 1,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.91 : 3,302.90 = 1,448.70 : x
  2. Step 2: Convert to fraction form
    2,392.91/3,302.90 = 1,448.70/x
  3. Step 3: Cross multiply
    2,392.91x = 3,302.90 × 1,448.70
  4. Step 4: Simplify right side
    2,392.91x = 4,784,903.99
  5. Step 5: Solve for x
    x = 4,784,903.99/2,392.91
  6. Step 6: Final answer
    x = 1,999.62

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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.