Home / 3,631.45-5,449.61-1,322.95

Finding the Fourth Proportional to 3,631.45, 5,449.61 and 1,322.95

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Solution

The fourth proportional to 3,631.45, 5,449.61 and 1,322.95 is: 1,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.45 : 5,449.61 = 1,322.95 : x
  2. Step 2: Convert to fraction form
    3,631.45/5,449.61 = 1,322.95/x
  3. Step 3: Cross multiply
    3,631.45x = 5,449.61 × 1,322.95
  4. Step 4: Simplify right side
    3,631.45x = 7,209,561.55
  5. Step 5: Solve for x
    x = 7,209,561.55/3,631.45
  6. Step 6: Final answer
    x = 1,985.31

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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.