Home / 1,997.17-2,756.39-1,157.92

Finding the Fourth Proportional to 1,997.17, 2,756.39 and 1,157.92

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Solution

The fourth proportional to 1,997.17, 2,756.39 and 1,157.92 is: 1,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.17 : 2,756.39 = 1,157.92 : x
  2. Step 2: Convert to fraction form
    1,997.17/2,756.39 = 1,157.92/x
  3. Step 3: Cross multiply
    1,997.17x = 2,756.39 × 1,157.92
  4. Step 4: Simplify right side
    1,997.17x = 3,191,679.11
  5. Step 5: Solve for x
    x = 3,191,679.11/1,997.17
  6. Step 6: Final answer
    x = 1,598.10

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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.