Home / 2,853.85-4,278.92-1,876.99

Finding the Fourth Proportional to 2,853.85, 4,278.92 and 1,876.99

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Solution

The fourth proportional to 2,853.85, 4,278.92 and 1,876.99 is: 2,814.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.85 : 4,278.92 = 1,876.99 : x
  2. Step 2: Convert to fraction form
    2,853.85/4,278.92 = 1,876.99/x
  3. Step 3: Cross multiply
    2,853.85x = 4,278.92 × 1,876.99
  4. Step 4: Simplify right side
    2,853.85x = 8,031,459.27
  5. Step 5: Solve for x
    x = 8,031,459.27/2,853.85
  6. Step 6: Final answer
    x = 2,814.26

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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.