Home / 6,631.21-9,943.63-3,858.51

Finding the Fourth Proportional to 6,631.21, 9,943.63 and 3,858.51

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Solution

The fourth proportional to 6,631.21, 9,943.63 and 3,858.51 is: 5,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.21 : 9,943.63 = 3,858.51 : x
  2. Step 2: Convert to fraction form
    6,631.21/9,943.63 = 3,858.51/x
  3. Step 3: Cross multiply
    6,631.21x = 9,943.63 × 3,858.51
  4. Step 4: Simplify right side
    6,631.21x = 38,367,526.78
  5. Step 5: Solve for x
    x = 38,367,526.78/6,631.21
  6. Step 6: Final answer
    x = 5,785.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.