Home / 3,520.29-5,280.09-923.22

Finding the Fourth Proportional to 3,520.29, 5,280.09 and 923.22

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Solution

The fourth proportional to 3,520.29, 5,280.09 and 923.22 is: 1,384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.29 : 5,280.09 = 923.22 : x
  2. Step 2: Convert to fraction form
    3,520.29/5,280.09 = 923.22/x
  3. Step 3: Cross multiply
    3,520.29x = 5,280.09 × 923.22
  4. Step 4: Simplify right side
    3,520.29x = 4,874,684.69
  5. Step 5: Solve for x
    x = 4,874,684.69/3,520.29
  6. Step 6: Final answer
    x = 1,384.74

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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.