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Finding the Fourth Proportional to 2,573.79, 3,859.23 and 818.46

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Solution

The fourth proportional to 2,573.79, 3,859.23 and 818.46 is: 1,227.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,573.79 : 3,859.23 = 818.46 : x
  2. Step 2: Convert to fraction form
    2,573.79/3,859.23 = 818.46/x
  3. Step 3: Cross multiply
    2,573.79x = 3,859.23 × 818.46
  4. Step 4: Simplify right side
    2,573.79x = 3,158,625.39
  5. Step 5: Solve for x
    x = 3,158,625.39/2,573.79
  6. Step 6: Final answer
    x = 1,227.23

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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.