Home / 4,285.80-5,911.20-2,712.42

Finding the Fourth Proportional to 4,285.80, 5,911.20 and 2,712.42

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Solution

The fourth proportional to 4,285.80, 5,911.20 and 2,712.42 is: 3,741.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.80 : 5,911.20 = 2,712.42 : x
  2. Step 2: Convert to fraction form
    4,285.80/5,911.20 = 2,712.42/x
  3. Step 3: Cross multiply
    4,285.80x = 5,911.20 × 2,712.42
  4. Step 4: Simplify right side
    4,285.80x = 16,033,657.10
  5. Step 5: Solve for x
    x = 16,033,657.10/4,285.80
  6. Step 6: Final answer
    x = 3,741.11

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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.