Home / 5,705.84-8,561.20-2,742.86

Finding the Fourth Proportional to 5,705.84, 8,561.20 and 2,742.86

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Solution

The fourth proportional to 5,705.84, 8,561.20 and 2,742.86 is: 4,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.84 : 8,561.20 = 2,742.86 : x
  2. Step 2: Convert to fraction form
    5,705.84/8,561.20 = 2,742.86/x
  3. Step 3: Cross multiply
    5,705.84x = 8,561.20 × 2,742.86
  4. Step 4: Simplify right side
    5,705.84x = 23,482,173.03
  5. Step 5: Solve for x
    x = 23,482,173.03/5,705.84
  6. Step 6: Final answer
    x = 4,115.46

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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.