Home / 2,101.41-2,899.85-1,157.36

Finding the Fourth Proportional to 2,101.41, 2,899.85 and 1,157.36

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Solution

The fourth proportional to 2,101.41, 2,899.85 and 1,157.36 is: 1,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.41 : 2,899.85 = 1,157.36 : x
  2. Step 2: Convert to fraction form
    2,101.41/2,899.85 = 1,157.36/x
  3. Step 3: Cross multiply
    2,101.41x = 2,899.85 × 1,157.36
  4. Step 4: Simplify right side
    2,101.41x = 3,356,150.11
  5. Step 5: Solve for x
    x = 3,356,150.11/2,101.41
  6. Step 6: Final answer
    x = 1,597.09

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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.