Home / 6,631.47-9,151.20-3,647.03

Finding the Fourth Proportional to 6,631.47, 9,151.20 and 3,647.03

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Solution

The fourth proportional to 6,631.47, 9,151.20 and 3,647.03 is: 5,032.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.47 : 9,151.20 = 3,647.03 : x
  2. Step 2: Convert to fraction form
    6,631.47/9,151.20 = 3,647.03/x
  3. Step 3: Cross multiply
    6,631.47x = 9,151.20 × 3,647.03
  4. Step 4: Simplify right side
    6,631.47x = 33,374,655.18
  5. Step 5: Solve for x
    x = 33,374,655.18/6,631.47
  6. Step 6: Final answer
    x = 5,032.77

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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.