Home / 7,070.09-9,756.81-3,882.92

Finding the Fourth Proportional to 7,070.09, 9,756.81 and 3,882.92

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Solution

The fourth proportional to 7,070.09, 9,756.81 and 3,882.92 is: 5,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.09 : 9,756.81 = 3,882.92 : x
  2. Step 2: Convert to fraction form
    7,070.09/9,756.81 = 3,882.92/x
  3. Step 3: Cross multiply
    7,070.09x = 9,756.81 × 3,882.92
  4. Step 4: Simplify right side
    7,070.09x = 37,884,912.69
  5. Step 5: Solve for x
    x = 37,884,912.69/7,070.09
  6. Step 6: Final answer
    x = 5,358.48

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1.5x scale

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.