Home / 7,042.36-9,719.96-5,862.28

Finding the Fourth Proportional to 7,042.36, 9,719.96 and 5,862.28

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Solution

The fourth proportional to 7,042.36, 9,719.96 and 5,862.28 is: 8,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.36 : 9,719.96 = 5,862.28 : x
  2. Step 2: Convert to fraction form
    7,042.36/9,719.96 = 5,862.28/x
  3. Step 3: Cross multiply
    7,042.36x = 9,719.96 × 5,862.28
  4. Step 4: Simplify right side
    7,042.36x = 56,981,127.11
  5. Step 5: Solve for x
    x = 56,981,127.11/7,042.36
  6. Step 6: Final answer
    x = 8,091.20

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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.