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Finding the Fourth Proportional to 2,542.16, 3,812.73 and 693.12

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Solution

The fourth proportional to 2,542.16, 3,812.73 and 693.12 is: 1,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.16 : 3,812.73 = 693.12 : x
  2. Step 2: Convert to fraction form
    2,542.16/3,812.73 = 693.12/x
  3. Step 3: Cross multiply
    2,542.16x = 3,812.73 × 693.12
  4. Step 4: Simplify right side
    2,542.16x = 2,642,675.52
  5. Step 5: Solve for x
    x = 2,642,675.52/2,542.16
  6. Step 6: Final answer
    x = 1,039.54

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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.