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Finding the Fourth Proportional to 2,897.62, 3,998.10 and 1,719.07

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Solution

The fourth proportional to 2,897.62, 3,998.10 and 1,719.07 is: 2,371.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.62 : 3,998.10 = 1,719.07 : x
  2. Step 2: Convert to fraction form
    2,897.62/3,998.10 = 1,719.07/x
  3. Step 3: Cross multiply
    2,897.62x = 3,998.10 × 1,719.07
  4. Step 4: Simplify right side
    2,897.62x = 6,873,013.77
  5. Step 5: Solve for x
    x = 6,873,013.77/2,897.62
  6. Step 6: Final answer
    x = 2,371.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.