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Finding the Fourth Proportional to 2,392.01, 3,588.48 and 748.20

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Solution

The fourth proportional to 2,392.01, 3,588.48 and 748.20 is: 1,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.01 : 3,588.48 = 748.20 : x
  2. Step 2: Convert to fraction form
    2,392.01/3,588.48 = 748.20/x
  3. Step 3: Cross multiply
    2,392.01x = 3,588.48 × 748.20
  4. Step 4: Simplify right side
    2,392.01x = 2,684,900.74
  5. Step 5: Solve for x
    x = 2,684,900.74/2,392.01
  6. Step 6: Final answer
    x = 1,122.45

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1.5x scale

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.