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Finding the Fourth Proportional to 2,823.88, 3,887.22 and 2,445.62

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Solution

The fourth proportional to 2,823.88, 3,887.22 and 2,445.62 is: 3,366.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.88 : 3,887.22 = 2,445.62 : x
  2. Step 2: Convert to fraction form
    2,823.88/3,887.22 = 2,445.62/x
  3. Step 3: Cross multiply
    2,823.88x = 3,887.22 × 2,445.62
  4. Step 4: Simplify right side
    2,823.88x = 9,506,662.98
  5. Step 5: Solve for x
    x = 9,506,662.98/2,823.88
  6. Step 6: Final answer
    x = 3,366.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.