Home / 5,320.67-7,980.71-1,622.84

Finding the Fourth Proportional to 5,320.67, 7,980.71 and 1,622.84

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Solution

The fourth proportional to 5,320.67, 7,980.71 and 1,622.84 is: 2,434.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.67 : 7,980.71 = 1,622.84 : x
  2. Step 2: Convert to fraction form
    5,320.67/7,980.71 = 1,622.84/x
  3. Step 3: Cross multiply
    5,320.67x = 7,980.71 × 1,622.84
  4. Step 4: Simplify right side
    5,320.67x = 12,951,367.40
  5. Step 5: Solve for x
    x = 12,951,367.40/5,320.67
  6. Step 6: Final answer
    x = 2,434.16

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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.