Home / 2,635.20-3,632.58-1,890.72

Finding the Fourth Proportional to 2,635.20, 3,632.58 and 1,890.72

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Solution

The fourth proportional to 2,635.20, 3,632.58 and 1,890.72 is: 2,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.20 : 3,632.58 = 1,890.72 : x
  2. Step 2: Convert to fraction form
    2,635.20/3,632.58 = 1,890.72/x
  3. Step 3: Cross multiply
    2,635.20x = 3,632.58 × 1,890.72
  4. Step 4: Simplify right side
    2,635.20x = 6,868,191.66
  5. Step 5: Solve for x
    x = 6,868,191.66/2,635.20
  6. Step 6: Final answer
    x = 2,606.33

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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.