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Finding the Fourth Proportional to 2,914.08, 4,371.12 and 722.82

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Solution

The fourth proportional to 2,914.08, 4,371.12 and 722.82 is: 1,084.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.08 : 4,371.12 = 722.82 : x
  2. Step 2: Convert to fraction form
    2,914.08/4,371.12 = 722.82/x
  3. Step 3: Cross multiply
    2,914.08x = 4,371.12 × 722.82
  4. Step 4: Simplify right side
    2,914.08x = 3,159,532.96
  5. Step 5: Solve for x
    x = 3,159,532.96/2,914.08
  6. Step 6: Final answer
    x = 1,084.23

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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.