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Finding the Fourth Proportional to 6,899.07, 9,523.95 and 4,065.57

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Solution

The fourth proportional to 6,899.07, 9,523.95 and 4,065.57 is: 5,612.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.07 : 9,523.95 = 4,065.57 : x
  2. Step 2: Convert to fraction form
    6,899.07/9,523.95 = 4,065.57/x
  3. Step 3: Cross multiply
    6,899.07x = 9,523.95 × 4,065.57
  4. Step 4: Simplify right side
    6,899.07x = 38,720,285.40
  5. Step 5: Solve for x
    x = 38,720,285.40/6,899.07
  6. Step 6: Final answer
    x = 5,612.39

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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.