Home / 7,035.45-9,708.62-3,891.43

Finding the Fourth Proportional to 7,035.45, 9,708.62 and 3,891.43

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Solution

The fourth proportional to 7,035.45, 9,708.62 and 3,891.43 is: 5,370.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,035.45 : 9,708.62 = 3,891.43 : x
  2. Step 2: Convert to fraction form
    7,035.45/9,708.62 = 3,891.43/x
  3. Step 3: Cross multiply
    7,035.45x = 9,708.62 × 3,891.43
  4. Step 4: Simplify right side
    7,035.45x = 37,780,415.13
  5. Step 5: Solve for x
    x = 37,780,415.13/7,035.45
  6. Step 6: Final answer
    x = 5,370.01

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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.