Home / 6,897.90-9,515.16-4,243.44

Finding the Fourth Proportional to 6,897.90, 9,515.16 and 4,243.44

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Solution

The fourth proportional to 6,897.90, 9,515.16 and 4,243.44 is: 5,853.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897.90 : 9,515.16 = 4,243.44 : x
  2. Step 2: Convert to fraction form
    6,897.90/9,515.16 = 4,243.44/x
  3. Step 3: Cross multiply
    6,897.90x = 9,515.16 × 4,243.44
  4. Step 4: Simplify right side
    6,897.90x = 40,377,010.55
  5. Step 5: Solve for x
    x = 40,377,010.55/6,897.90
  6. Step 6: Final answer
    x = 5,853.52

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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.