Home / 7,224.45-9,969.64-4,080.70

Finding the Fourth Proportional to 7,224.45, 9,969.64 and 4,080.70

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Solution

The fourth proportional to 7,224.45, 9,969.64 and 4,080.70 is: 5,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.45 : 9,969.64 = 4,080.70 : x
  2. Step 2: Convert to fraction form
    7,224.45/9,969.64 = 4,080.70/x
  3. Step 3: Cross multiply
    7,224.45x = 9,969.64 × 4,080.70
  4. Step 4: Simplify right side
    7,224.45x = 40,683,109.95
  5. Step 5: Solve for x
    x = 40,683,109.95/7,224.45
  6. Step 6: Final answer
    x = 5,631.31

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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.