Home / 5,320.73-7,980.95-1,622.81

Finding the Fourth Proportional to 5,320.73, 7,980.95 and 1,622.81

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Solution

The fourth proportional to 5,320.73, 7,980.95 and 1,622.81 is: 2,434.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.73 : 7,980.95 = 1,622.81 : x
  2. Step 2: Convert to fraction form
    5,320.73/7,980.95 = 1,622.81/x
  3. Step 3: Cross multiply
    5,320.73x = 7,980.95 × 1,622.81
  4. Step 4: Simplify right side
    5,320.73x = 12,951,589.48
  5. Step 5: Solve for x
    x = 12,951,589.48/5,320.73
  6. Step 6: Final answer
    x = 2,434.17

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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.