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Finding the Fourth Proportional to 2,854.98, 3,938.78 and 1,735.49

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Solution

The fourth proportional to 2,854.98, 3,938.78 and 1,735.49 is: 2,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.98 : 3,938.78 = 1,735.49 : x
  2. Step 2: Convert to fraction form
    2,854.98/3,938.78 = 1,735.49/x
  3. Step 3: Cross multiply
    2,854.98x = 3,938.78 × 1,735.49
  4. Step 4: Simplify right side
    2,854.98x = 6,835,727.49
  5. Step 5: Solve for x
    x = 6,835,727.49/2,854.98
  6. Step 6: Final answer
    x = 2,394.32

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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.