Home / 7,322.81-10,983.30-2,938.78

Finding the Fourth Proportional to 7,322.81, 10,983.30 and 2,938.78

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Solution

The fourth proportional to 7,322.81, 10,983.30 and 2,938.78 is: 4,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.81 : 10,983.30 = 2,938.78 : x
  2. Step 2: Convert to fraction form
    7,322.81/10,983.30 = 2,938.78/x
  3. Step 3: Cross multiply
    7,322.81x = 10,983.30 × 2,938.78
  4. Step 4: Simplify right side
    7,322.81x = 32,277,505.08
  5. Step 5: Solve for x
    x = 32,277,505.08/7,322.81
  6. Step 6: Final answer
    x = 4,407.81

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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.