Home / 5,431.46-8,143.20-1,731.55

Finding the Fourth Proportional to 5,431.46, 8,143.20 and 1,731.55

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Solution

The fourth proportional to 5,431.46, 8,143.20 and 1,731.55 is: 2,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.46 : 8,143.20 = 1,731.55 : x
  2. Step 2: Convert to fraction form
    5,431.46/8,143.20 = 1,731.55/x
  3. Step 3: Cross multiply
    5,431.46x = 8,143.20 × 1,731.55
  4. Step 4: Simplify right side
    5,431.46x = 14,100,357.96
  5. Step 5: Solve for x
    x = 14,100,357.96/5,431.46
  6. Step 6: Final answer
    x = 2,596.05

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1.5x scale

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.