Home / 7,057.08-9,740.03-4,072.50

Finding the Fourth Proportional to 7,057.08, 9,740.03 and 4,072.50

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Solution

The fourth proportional to 7,057.08, 9,740.03 and 4,072.50 is: 5,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,057.08 : 9,740.03 = 4,072.50 : x
  2. Step 2: Convert to fraction form
    7,057.08/9,740.03 = 4,072.50/x
  3. Step 3: Cross multiply
    7,057.08x = 9,740.03 × 4,072.50
  4. Step 4: Simplify right side
    7,057.08x = 39,666,233.66
  5. Step 5: Solve for x
    x = 39,666,233.66/7,057.08
  6. Step 6: Final answer
    x = 5,620.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.