Home / 7,104.25-9,803.88-3,960.55

Finding the Fourth Proportional to 7,104.25, 9,803.88 and 3,960.55

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Solution

The fourth proportional to 7,104.25, 9,803.88 and 3,960.55 is: 5,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.25 : 9,803.88 = 3,960.55 : x
  2. Step 2: Convert to fraction form
    7,104.25/9,803.88 = 3,960.55/x
  3. Step 3: Cross multiply
    7,104.25x = 9,803.88 × 3,960.55
  4. Step 4: Simplify right side
    7,104.25x = 38,828,688.11
  5. Step 5: Solve for x
    x = 38,828,688.11/7,104.25
  6. Step 6: Final answer
    x = 5,465.56

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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.