Home / 5,320.37-7,981.84-1,622.66

Finding the Fourth Proportional to 5,320.37, 7,981.84 and 1,622.66

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Solution

The fourth proportional to 5,320.37, 7,981.84 and 1,622.66 is: 2,434.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.37 : 7,981.84 = 1,622.66 : x
  2. Step 2: Convert to fraction form
    5,320.37/7,981.84 = 1,622.66/x
  3. Step 3: Cross multiply
    5,320.37x = 7,981.84 × 1,622.66
  4. Step 4: Simplify right side
    5,320.37x = 12,951,812.49
  5. Step 5: Solve for x
    x = 12,951,812.49/5,320.37
  6. Step 6: Final answer
    x = 2,434.38

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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.