Home / 7,062.48-9,746.20-3,918.66

Finding the Fourth Proportional to 7,062.48, 9,746.20 and 3,918.66

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Solution

The fourth proportional to 7,062.48, 9,746.20 and 3,918.66 is: 5,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,062.48 : 9,746.20 = 3,918.66 : x
  2. Step 2: Convert to fraction form
    7,062.48/9,746.20 = 3,918.66/x
  3. Step 3: Cross multiply
    7,062.48x = 9,746.20 × 3,918.66
  4. Step 4: Simplify right side
    7,062.48x = 38,192,044.09
  5. Step 5: Solve for x
    x = 38,192,044.09/7,062.48
  6. Step 6: Final answer
    x = 5,407.74

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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.