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Finding the Fourth Proportional to 2,486.34, 3,729.06 and 925.99

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Solution

The fourth proportional to 2,486.34, 3,729.06 and 925.99 is: 1,388.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.34 : 3,729.06 = 925.99 : x
  2. Step 2: Convert to fraction form
    2,486.34/3,729.06 = 925.99/x
  3. Step 3: Cross multiply
    2,486.34x = 3,729.06 × 925.99
  4. Step 4: Simplify right side
    2,486.34x = 3,453,062.95
  5. Step 5: Solve for x
    x = 3,453,062.95/2,486.34
  6. Step 6: Final answer
    x = 1,388.81

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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.