Home / 5,320.56-7,981.23-1,623.06

Finding the Fourth Proportional to 5,320.56, 7,981.23 and 1,623.06

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Solution

The fourth proportional to 5,320.56, 7,981.23 and 1,623.06 is: 2,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.56 : 7,981.23 = 1,623.06 : x
  2. Step 2: Convert to fraction form
    5,320.56/7,981.23 = 1,623.06/x
  3. Step 3: Cross multiply
    5,320.56x = 7,981.23 × 1,623.06
  4. Step 4: Simplify right side
    5,320.56x = 12,954,015.16
  5. Step 5: Solve for x
    x = 12,954,015.16/5,320.56
  6. Step 6: Final answer
    x = 2,434.71

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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.