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Finding the Fourth Proportional to 2,853.58, 4,278.29 and 1,926.84

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Solution

The fourth proportional to 2,853.58, 4,278.29 and 1,926.84 is: 2,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.58 : 4,278.29 = 1,926.84 : x
  2. Step 2: Convert to fraction form
    2,853.58/4,278.29 = 1,926.84/x
  3. Step 3: Cross multiply
    2,853.58x = 4,278.29 × 1,926.84
  4. Step 4: Simplify right side
    2,853.58x = 8,243,554.10
  5. Step 5: Solve for x
    x = 8,243,554.10/2,853.58
  6. Step 6: Final answer
    x = 2,888.85

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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.