Home / 3,630.91-5,015.35-2,801.86

Finding the Fourth Proportional to 3,630.91, 5,015.35 and 2,801.86

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Solution

The fourth proportional to 3,630.91, 5,015.35 and 2,801.86 is: 3,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.91 : 5,015.35 = 2,801.86 : x
  2. Step 2: Convert to fraction form
    3,630.91/5,015.35 = 2,801.86/x
  3. Step 3: Cross multiply
    3,630.91x = 5,015.35 × 2,801.86
  4. Step 4: Simplify right side
    3,630.91x = 14,052,283.75
  5. Step 5: Solve for x
    x = 14,052,283.75/3,630.91
  6. Step 6: Final answer
    x = 3,870.18

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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.