Home / 5,320.36-7,981.54-1,622.92

Finding the Fourth Proportional to 5,320.36, 7,981.54 and 1,622.92

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Solution

The fourth proportional to 5,320.36, 7,981.54 and 1,622.92 is: 2,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.36 : 7,981.54 = 1,622.92 : x
  2. Step 2: Convert to fraction form
    5,320.36/7,981.54 = 1,622.92/x
  3. Step 3: Cross multiply
    5,320.36x = 7,981.54 × 1,622.92
  4. Step 4: Simplify right side
    5,320.36x = 12,953,400.90
  5. Step 5: Solve for x
    x = 12,953,400.90/5,320.36
  6. Step 6: Final answer
    x = 2,434.69

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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.