Home / 6,386.43-9,582.36-2,689.47

Finding the Fourth Proportional to 6,386.43, 9,582.36 and 2,689.47

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Solution

The fourth proportional to 6,386.43, 9,582.36 and 2,689.47 is: 4,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.43 : 9,582.36 = 2,689.47 : x
  2. Step 2: Convert to fraction form
    6,386.43/9,582.36 = 2,689.47/x
  3. Step 3: Cross multiply
    6,386.43x = 9,582.36 × 2,689.47
  4. Step 4: Simplify right side
    6,386.43x = 25,771,469.75
  5. Step 5: Solve for x
    x = 25,771,469.75/6,386.43
  6. Step 6: Final answer
    x = 4,035.35

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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.