Home / 2,897.91-3,998.57-1,718.28

Finding the Fourth Proportional to 2,897.91, 3,998.57 and 1,718.28

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Solution

The fourth proportional to 2,897.91, 3,998.57 and 1,718.28 is: 2,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.91 : 3,998.57 = 1,718.28 : x
  2. Step 2: Convert to fraction form
    2,897.91/3,998.57 = 1,718.28/x
  3. Step 3: Cross multiply
    2,897.91x = 3,998.57 × 1,718.28
  4. Step 4: Simplify right side
    2,897.91x = 6,870,654.27
  5. Step 5: Solve for x
    x = 6,870,654.27/2,897.91
  6. Step 6: Final answer
    x = 2,370.90

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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.