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Finding the Fourth Proportional to 2,540.94, 3,811.55 and 898.26

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Solution

The fourth proportional to 2,540.94, 3,811.55 and 898.26 is: 1,347.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.94 : 3,811.55 = 898.26 : x
  2. Step 2: Convert to fraction form
    2,540.94/3,811.55 = 898.26/x
  3. Step 3: Cross multiply
    2,540.94x = 3,811.55 × 898.26
  4. Step 4: Simplify right side
    2,540.94x = 3,423,758.41
  5. Step 5: Solve for x
    x = 3,423,758.41/2,540.94
  6. Step 6: Final answer
    x = 1,347.44

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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.