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Finding the Fourth Proportional to 2,793.40, 3,854.99 and 1,534.60

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Solution

The fourth proportional to 2,793.40, 3,854.99 and 1,534.60 is: 2,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.40 : 3,854.99 = 1,534.60 : x
  2. Step 2: Convert to fraction form
    2,793.40/3,854.99 = 1,534.60/x
  3. Step 3: Cross multiply
    2,793.40x = 3,854.99 × 1,534.60
  4. Step 4: Simplify right side
    2,793.40x = 5,915,867.65
  5. Step 5: Solve for x
    x = 5,915,867.65/2,793.40
  6. Step 6: Final answer
    x = 2,117.80

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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.