Home / 7,070.10-10,599.60-3,171.78

Finding the Fourth Proportional to 7,070.10, 10,599.60 and 3,171.78

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Solution

The fourth proportional to 7,070.10, 10,599.60 and 3,171.78 is: 4,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.10 : 10,599.60 = 3,171.78 : x
  2. Step 2: Convert to fraction form
    7,070.10/10,599.60 = 3,171.78/x
  3. Step 3: Cross multiply
    7,070.10x = 10,599.60 × 3,171.78
  4. Step 4: Simplify right side
    7,070.10x = 33,619,599.29
  5. Step 5: Solve for x
    x = 33,619,599.29/7,070.10
  6. Step 6: Final answer
    x = 4,755.18

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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.