Home / 3,512.39-4,842.87-2,840.91

Finding the Fourth Proportional to 3,512.39, 4,842.87 and 2,840.91

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Solution

The fourth proportional to 3,512.39, 4,842.87 and 2,840.91 is: 3,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.39 : 4,842.87 = 2,840.91 : x
  2. Step 2: Convert to fraction form
    3,512.39/4,842.87 = 2,840.91/x
  3. Step 3: Cross multiply
    3,512.39x = 4,842.87 × 2,840.91
  4. Step 4: Simplify right side
    3,512.39x = 13,758,157.81
  5. Step 5: Solve for x
    x = 13,758,157.81/3,512.39
  6. Step 6: Final answer
    x = 3,917.04

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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.