Home / 5,516.17-8,275.62-1,620.56

Finding the Fourth Proportional to 5,516.17, 8,275.62 and 1,620.56

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Solution

The fourth proportional to 5,516.17, 8,275.62 and 1,620.56 is: 2,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.17 : 8,275.62 = 1,620.56 : x
  2. Step 2: Convert to fraction form
    5,516.17/8,275.62 = 1,620.56/x
  3. Step 3: Cross multiply
    5,516.17x = 8,275.62 × 1,620.56
  4. Step 4: Simplify right side
    5,516.17x = 13,411,138.75
  5. Step 5: Solve for x
    x = 13,411,138.75/5,516.17
  6. Step 6: Final answer
    x = 2,431.24

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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.