Home / 5,320.96-7,981.74-1,623.30

Finding the Fourth Proportional to 5,320.96, 7,981.74 and 1,623.30

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Solution

The fourth proportional to 5,320.96, 7,981.74 and 1,623.30 is: 2,435.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.96 : 7,981.74 = 1,623.30 : x
  2. Step 2: Convert to fraction form
    5,320.96/7,981.74 = 1,623.30/x
  3. Step 3: Cross multiply
    5,320.96x = 7,981.74 × 1,623.30
  4. Step 4: Simplify right side
    5,320.96x = 12,956,758.54
  5. Step 5: Solve for x
    x = 12,956,758.54/5,320.96
  6. Step 6: Final answer
    x = 2,435.04

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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.