Home / 7,243.28-9,995.76-4,100.08

Finding the Fourth Proportional to 7,243.28, 9,995.76 and 4,100.08

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Solution

The fourth proportional to 7,243.28, 9,995.76 and 4,100.08 is: 5,658.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.28 : 9,995.76 = 4,100.08 : x
  2. Step 2: Convert to fraction form
    7,243.28/9,995.76 = 4,100.08/x
  3. Step 3: Cross multiply
    7,243.28x = 9,995.76 × 4,100.08
  4. Step 4: Simplify right side
    7,243.28x = 40,983,415.66
  5. Step 5: Solve for x
    x = 40,983,415.66/7,243.28
  6. Step 6: Final answer
    x = 5,658.13

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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.