Home / 6,989.18-9,644.85-3,845.34

Finding the Fourth Proportional to 6,989.18, 9,644.85 and 3,845.34

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Solution

The fourth proportional to 6,989.18, 9,644.85 and 3,845.34 is: 5,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.18 : 9,644.85 = 3,845.34 : x
  2. Step 2: Convert to fraction form
    6,989.18/9,644.85 = 3,845.34/x
  3. Step 3: Cross multiply
    6,989.18x = 9,644.85 × 3,845.34
  4. Step 4: Simplify right side
    6,989.18x = 37,087,727.50
  5. Step 5: Solve for x
    x = 37,087,727.50/6,989.18
  6. Step 6: Final answer
    x = 5,306.45

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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.