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Finding the Fourth Proportional to 2,854.62, 4,274.28 and 2,690.84

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Solution

The fourth proportional to 2,854.62, 4,274.28 and 2,690.84 is: 4,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.62 : 4,274.28 = 2,690.84 : x
  2. Step 2: Convert to fraction form
    2,854.62/4,274.28 = 2,690.84/x
  3. Step 3: Cross multiply
    2,854.62x = 4,274.28 × 2,690.84
  4. Step 4: Simplify right side
    2,854.62x = 11,501,403.60
  5. Step 5: Solve for x
    x = 11,501,403.60/2,854.62
  6. Step 6: Final answer
    x = 4,029.05

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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.