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Finding the Fourth Proportional to 2,612.79, 3,607.74 and 2,022.30

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Solution

The fourth proportional to 2,612.79, 3,607.74 and 2,022.30 is: 2,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.79 : 3,607.74 = 2,022.30 : x
  2. Step 2: Convert to fraction form
    2,612.79/3,607.74 = 2,022.30/x
  3. Step 3: Cross multiply
    2,612.79x = 3,607.74 × 2,022.30
  4. Step 4: Simplify right side
    2,612.79x = 7,295,932.60
  5. Step 5: Solve for x
    x = 7,295,932.60/2,612.79
  6. Step 6: Final answer
    x = 2,792.39

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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.