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Finding the Fourth Proportional to 7,080.54, 10,627.29 and 5,431.74

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Solution

The fourth proportional to 7,080.54, 10,627.29 and 5,431.74 is: 8,152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.54 : 10,627.29 = 5,431.74 : x
  2. Step 2: Convert to fraction form
    7,080.54/10,627.29 = 5,431.74/x
  3. Step 3: Cross multiply
    7,080.54x = 10,627.29 × 5,431.74
  4. Step 4: Simplify right side
    7,080.54x = 57,724,676.18
  5. Step 5: Solve for x
    x = 57,724,676.18/7,080.54
  6. Step 6: Final answer
    x = 8,152.58

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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.