Home / 5,431.18-8,145.74-2,310.60

Finding the Fourth Proportional to 5,431.18, 8,145.74 and 2,310.60

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Solution

The fourth proportional to 5,431.18, 8,145.74 and 2,310.60 is: 3,465.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.18 : 8,145.74 = 2,310.60 : x
  2. Step 2: Convert to fraction form
    5,431.18/8,145.74 = 2,310.60/x
  3. Step 3: Cross multiply
    5,431.18x = 8,145.74 × 2,310.60
  4. Step 4: Simplify right side
    5,431.18x = 18,821,546.84
  5. Step 5: Solve for x
    x = 18,821,546.84/5,431.18
  6. Step 6: Final answer
    x = 3,465.46

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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.