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Finding the Fourth Proportional to 3,643.22, 5,465.21 and 1,010.72

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Solution

The fourth proportional to 3,643.22, 5,465.21 and 1,010.72 is: 1,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.22 : 5,465.21 = 1,010.72 : x
  2. Step 2: Convert to fraction form
    3,643.22/5,465.21 = 1,010.72/x
  3. Step 3: Cross multiply
    3,643.22x = 5,465.21 × 1,010.72
  4. Step 4: Simplify right side
    3,643.22x = 5,523,797.05
  5. Step 5: Solve for x
    x = 5,523,797.05/3,643.22
  6. Step 6: Final answer
    x = 1,516.19

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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.