Home / 5,712.10-8,561.30-2,940.08

Finding the Fourth Proportional to 5,712.10, 8,561.30 and 2,940.08

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Solution

The fourth proportional to 5,712.10, 8,561.30 and 2,940.08 is: 4,406.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.10 : 8,561.30 = 2,940.08 : x
  2. Step 2: Convert to fraction form
    5,712.10/8,561.30 = 2,940.08/x
  3. Step 3: Cross multiply
    5,712.10x = 8,561.30 × 2,940.08
  4. Step 4: Simplify right side
    5,712.10x = 25,170,849.40
  5. Step 5: Solve for x
    x = 25,170,849.40/5,712.10
  6. Step 6: Final answer
    x = 4,406.59

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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.