Home / 5,731.04-7,912.68-3,580.86

Finding the Fourth Proportional to 5,731.04, 7,912.68 and 3,580.86

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Solution

The fourth proportional to 5,731.04, 7,912.68 and 3,580.86 is: 4,943.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.04 : 7,912.68 = 3,580.86 : x
  2. Step 2: Convert to fraction form
    5,731.04/7,912.68 = 3,580.86/x
  3. Step 3: Cross multiply
    5,731.04x = 7,912.68 × 3,580.86
  4. Step 4: Simplify right side
    5,731.04x = 28,334,199.30
  5. Step 5: Solve for x
    x = 28,334,199.30/5,731.04
  6. Step 6: Final answer
    x = 4,943.99

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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.