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Finding the Fourth Proportional to 6,911.71, 9,531.46 and 4,389.37

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Solution

The fourth proportional to 6,911.71, 9,531.46 and 4,389.37 is: 6,053.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.71 : 9,531.46 = 4,389.37 : x
  2. Step 2: Convert to fraction form
    6,911.71/9,531.46 = 4,389.37/x
  3. Step 3: Cross multiply
    6,911.71x = 9,531.46 × 4,389.37
  4. Step 4: Simplify right side
    6,911.71x = 41,837,104.58
  5. Step 5: Solve for x
    x = 41,837,104.58/6,911.71
  6. Step 6: Final answer
    x = 6,053.08

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1.5x scale

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.