Home / 5,622.51-8,434.79-2,812.81

Finding the Fourth Proportional to 5,622.51, 8,434.79 and 2,812.81

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Solution

The fourth proportional to 5,622.51, 8,434.79 and 2,812.81 is: 4,219.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.51 : 8,434.79 = 2,812.81 : x
  2. Step 2: Convert to fraction form
    5,622.51/8,434.79 = 2,812.81/x
  3. Step 3: Cross multiply
    5,622.51x = 8,434.79 × 2,812.81
  4. Step 4: Simplify right side
    5,622.51x = 23,725,461.66
  5. Step 5: Solve for x
    x = 23,725,461.66/5,622.51
  6. Step 6: Final answer
    x = 4,219.73

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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.