Home / 2,838.42-4,254.48-2,142.83

Finding the Fourth Proportional to 2,838.42, 4,254.48 and 2,142.83

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Solution

The fourth proportional to 2,838.42, 4,254.48 and 2,142.83 is: 3,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.42 : 4,254.48 = 2,142.83 : x
  2. Step 2: Convert to fraction form
    2,838.42/4,254.48 = 2,142.83/x
  3. Step 3: Cross multiply
    2,838.42x = 4,254.48 × 2,142.83
  4. Step 4: Simplify right side
    2,838.42x = 9,116,638.01
  5. Step 5: Solve for x
    x = 9,116,638.01/2,838.42
  6. Step 6: Final answer
    x = 3,211.87

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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.