Home / 5,320.62-7,979.54-1,622.45

Finding the Fourth Proportional to 5,320.62, 7,979.54 and 1,622.45

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Solution

The fourth proportional to 5,320.62, 7,979.54 and 1,622.45 is: 2,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.62 : 7,979.54 = 1,622.45 : x
  2. Step 2: Convert to fraction form
    5,320.62/7,979.54 = 1,622.45/x
  3. Step 3: Cross multiply
    5,320.62x = 7,979.54 × 1,622.45
  4. Step 4: Simplify right side
    5,320.62x = 12,946,416.51
  5. Step 5: Solve for x
    x = 12,946,416.51/5,320.62
  6. Step 6: Final answer
    x = 2,433.25

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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.