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Finding the Fourth Proportional to 5,007.95, 7,513.16 and 1,721.09

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Solution

The fourth proportional to 5,007.95, 7,513.16 and 1,721.09 is: 2,582.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.95 : 7,513.16 = 1,721.09 : x
  2. Step 2: Convert to fraction form
    5,007.95/7,513.16 = 1,721.09/x
  3. Step 3: Cross multiply
    5,007.95x = 7,513.16 × 1,721.09
  4. Step 4: Simplify right side
    5,007.95x = 12,930,815.94
  5. Step 5: Solve for x
    x = 12,930,815.94/5,007.95
  6. Step 6: Final answer
    x = 2,582.06

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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.