Home / 7,042.28-10,564.02-2,111.81

Finding the Fourth Proportional to 7,042.28, 10,564.02 and 2,111.81

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Solution

The fourth proportional to 7,042.28, 10,564.02 and 2,111.81 is: 3,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.28 : 10,564.02 = 2,111.81 : x
  2. Step 2: Convert to fraction form
    7,042.28/10,564.02 = 2,111.81/x
  3. Step 3: Cross multiply
    7,042.28x = 10,564.02 × 2,111.81
  4. Step 4: Simplify right side
    7,042.28x = 22,309,150.26
  5. Step 5: Solve for x
    x = 22,309,150.26/7,042.28
  6. Step 6: Final answer
    x = 3,167.89

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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.