Home / 7,332.28-10,118.57-3,975.09

Finding the Fourth Proportional to 7,332.28, 10,118.57 and 3,975.09

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Solution

The fourth proportional to 7,332.28, 10,118.57 and 3,975.09 is: 5,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.28 : 10,118.57 = 3,975.09 : x
  2. Step 2: Convert to fraction form
    7,332.28/10,118.57 = 3,975.09/x
  3. Step 3: Cross multiply
    7,332.28x = 10,118.57 × 3,975.09
  4. Step 4: Simplify right side
    7,332.28x = 40,222,155.95
  5. Step 5: Solve for x
    x = 40,222,155.95/7,332.28
  6. Step 6: Final answer
    x = 5,485.63

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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.