Home / 5,431.59-8,148.08-2,311.02

Finding the Fourth Proportional to 5,431.59, 8,148.08 and 2,311.02

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Solution

The fourth proportional to 5,431.59, 8,148.08 and 2,311.02 is: 3,466.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.59 : 8,148.08 = 2,311.02 : x
  2. Step 2: Convert to fraction form
    5,431.59/8,148.08 = 2,311.02/x
  3. Step 3: Cross multiply
    5,431.59x = 8,148.08 × 2,311.02
  4. Step 4: Simplify right side
    5,431.59x = 18,830,375.84
  5. Step 5: Solve for x
    x = 18,830,375.84/5,431.59
  6. Step 6: Final answer
    x = 3,466.83

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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.