Home / 5,685.60-8,513.04-2,943.84

Finding the Fourth Proportional to 5,685.60, 8,513.04 and 2,943.84

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Solution

The fourth proportional to 5,685.60, 8,513.04 and 2,943.84 is: 4,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.60 : 8,513.04 = 2,943.84 : x
  2. Step 2: Convert to fraction form
    5,685.60/8,513.04 = 2,943.84/x
  3. Step 3: Cross multiply
    5,685.60x = 8,513.04 × 2,943.84
  4. Step 4: Simplify right side
    5,685.60x = 25,061,027.67
  5. Step 5: Solve for x
    x = 25,061,027.67/5,685.60
  6. Step 6: Final answer
    x = 4,407.81

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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.