Home / 4,120.83-5,686.74-2,257.83

Finding the Fourth Proportional to 4,120.83, 5,686.74 and 2,257.83

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Solution

The fourth proportional to 4,120.83, 5,686.74 and 2,257.83 is: 3,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.83 : 5,686.74 = 2,257.83 : x
  2. Step 2: Convert to fraction form
    4,120.83/5,686.74 = 2,257.83/x
  3. Step 3: Cross multiply
    4,120.83x = 5,686.74 × 2,257.83
  4. Step 4: Simplify right side
    4,120.83x = 12,839,663.74
  5. Step 5: Solve for x
    x = 12,839,663.74/4,120.83
  6. Step 6: Final answer
    x = 3,115.80

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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.