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Finding the Fourth Proportional to 3,007.08, 4,510.17 and 815.94

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Solution

The fourth proportional to 3,007.08, 4,510.17 and 815.94 is: 1,223.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.08 : 4,510.17 = 815.94 : x
  2. Step 2: Convert to fraction form
    3,007.08/4,510.17 = 815.94/x
  3. Step 3: Cross multiply
    3,007.08x = 4,510.17 × 815.94
  4. Step 4: Simplify right side
    3,007.08x = 3,680,028.11
  5. Step 5: Solve for x
    x = 3,680,028.11/3,007.08
  6. Step 6: Final answer
    x = 1,223.79

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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.