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Finding the Fourth Proportional to 2,693.59, 4,036.11 and 2,078.80

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Solution

The fourth proportional to 2,693.59, 4,036.11 and 2,078.80 is: 3,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.59 : 4,036.11 = 2,078.80 : x
  2. Step 2: Convert to fraction form
    2,693.59/4,036.11 = 2,078.80/x
  3. Step 3: Cross multiply
    2,693.59x = 4,036.11 × 2,078.80
  4. Step 4: Simplify right side
    2,693.59x = 8,390,265.47
  5. Step 5: Solve for x
    x = 8,390,265.47/2,693.59
  6. Step 6: Final answer
    x = 3,114.90

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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.