Home / 4,931.28-7,382.30-2,977.56

Finding the Fourth Proportional to 4,931.28, 7,382.30 and 2,977.56

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Solution

The fourth proportional to 4,931.28, 7,382.30 and 2,977.56 is: 4,457.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.28 : 7,382.30 = 2,977.56 : x
  2. Step 2: Convert to fraction form
    4,931.28/7,382.30 = 2,977.56/x
  3. Step 3: Cross multiply
    4,931.28x = 7,382.30 × 2,977.56
  4. Step 4: Simplify right side
    4,931.28x = 21,981,226.30
  5. Step 5: Solve for x
    x = 21,981,226.30/4,931.28
  6. Step 6: Final answer
    x = 4,457.51

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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.