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Finding the Fourth Proportional to 2,274.40, 3,411.22 and 631.12

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Solution

The fourth proportional to 2,274.40, 3,411.22 and 631.12 is: 946.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.40 : 3,411.22 = 631.12 : x
  2. Step 2: Convert to fraction form
    2,274.40/3,411.22 = 631.12/x
  3. Step 3: Cross multiply
    2,274.40x = 3,411.22 × 631.12
  4. Step 4: Simplify right side
    2,274.40x = 2,152,889.17
  5. Step 5: Solve for x
    x = 2,152,889.17/2,274.40
  6. Step 6: Final answer
    x = 946.57

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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.