Home / 6,989.64-9,646.17-3,846.03

Finding the Fourth Proportional to 6,989.64, 9,646.17 and 3,846.03

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Solution

The fourth proportional to 6,989.64, 9,646.17 and 3,846.03 is: 5,307.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.64 : 9,646.17 = 3,846.03 : x
  2. Step 2: Convert to fraction form
    6,989.64/9,646.17 = 3,846.03/x
  3. Step 3: Cross multiply
    6,989.64x = 9,646.17 × 3,846.03
  4. Step 4: Simplify right side
    6,989.64x = 37,099,459.21
  5. Step 5: Solve for x
    x = 37,099,459.21/6,989.64
  6. Step 6: Final answer
    x = 5,307.78

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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.