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Finding the Fourth Proportional to 7,223.49, 9,970.07 and 4,080.69

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Solution

The fourth proportional to 7,223.49, 9,970.07 and 4,080.69 is: 5,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.49 : 9,970.07 = 4,080.69 : x
  2. Step 2: Convert to fraction form
    7,223.49/9,970.07 = 4,080.69/x
  3. Step 3: Cross multiply
    7,223.49x = 9,970.07 × 4,080.69
  4. Step 4: Simplify right side
    7,223.49x = 40,684,744.54
  5. Step 5: Solve for x
    x = 40,684,744.54/7,223.49
  6. Step 6: Final answer
    x = 5,632.28

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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.