Home / 7,322.47-10,989.61-3,813.55

Finding the Fourth Proportional to 7,322.47, 10,989.61 and 3,813.55

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Solution

The fourth proportional to 7,322.47, 10,989.61 and 3,813.55 is: 5,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.47 : 10,989.61 = 3,813.55 : x
  2. Step 2: Convert to fraction form
    7,322.47/10,989.61 = 3,813.55/x
  3. Step 3: Cross multiply
    7,322.47x = 10,989.61 × 3,813.55
  4. Step 4: Simplify right side
    7,322.47x = 41,909,390.21
  5. Step 5: Solve for x
    x = 41,909,390.21/7,322.47
  6. Step 6: Final answer
    x = 5,723.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.