Home / 7,042.79-9,721.49-4,059.81

Finding the Fourth Proportional to 7,042.79, 9,721.49 and 4,059.81

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Solution

The fourth proportional to 7,042.79, 9,721.49 and 4,059.81 is: 5,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.79 : 9,721.49 = 4,059.81 : x
  2. Step 2: Convert to fraction form
    7,042.79/9,721.49 = 4,059.81/x
  3. Step 3: Cross multiply
    7,042.79x = 9,721.49 × 4,059.81
  4. Step 4: Simplify right side
    7,042.79x = 39,467,412.47
  5. Step 5: Solve for x
    x = 39,467,412.47/7,042.79
  6. Step 6: Final answer
    x = 5,603.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.