Home / 2,157.03-2,977.88-1,449.90

Finding the Fourth Proportional to 2,157.03, 2,977.88 and 1,449.90

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Solution

The fourth proportional to 2,157.03, 2,977.88 and 1,449.90 is: 2,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.03 : 2,977.88 = 1,449.90 : x
  2. Step 2: Convert to fraction form
    2,157.03/2,977.88 = 1,449.90/x
  3. Step 3: Cross multiply
    2,157.03x = 2,977.88 × 1,449.90
  4. Step 4: Simplify right side
    2,157.03x = 4,317,628.21
  5. Step 5: Solve for x
    x = 4,317,628.21/2,157.03
  6. Step 6: Final answer
    x = 2,001.65

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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.