Home / 5,390.64-8,091.36-2,471.04

Finding the Fourth Proportional to 5,390.64, 8,091.36 and 2,471.04

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Solution

The fourth proportional to 5,390.64, 8,091.36 and 2,471.04 is: 3,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.64 : 8,091.36 = 2,471.04 : x
  2. Step 2: Convert to fraction form
    5,390.64/8,091.36 = 2,471.04/x
  3. Step 3: Cross multiply
    5,390.64x = 8,091.36 × 2,471.04
  4. Step 4: Simplify right side
    5,390.64x = 19,994,074.21
  5. Step 5: Solve for x
    x = 19,994,074.21/5,390.64
  6. Step 6: Final answer
    x = 3,709.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.