Home / 2,897.12-3,997.41-1,718.57

Finding the Fourth Proportional to 2,897.12, 3,997.41 and 1,718.57

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Solution

The fourth proportional to 2,897.12, 3,997.41 and 1,718.57 is: 2,371.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.12 : 3,997.41 = 1,718.57 : x
  2. Step 2: Convert to fraction form
    2,897.12/3,997.41 = 1,718.57/x
  3. Step 3: Cross multiply
    2,897.12x = 3,997.41 × 1,718.57
  4. Step 4: Simplify right side
    2,897.12x = 6,869,828.90
  5. Step 5: Solve for x
    x = 6,869,828.90/2,897.12
  6. Step 6: Final answer
    x = 2,371.26

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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.