Home / 2,969.34-4,454.93-1,121.03

Finding the Fourth Proportional to 2,969.34, 4,454.93 and 1,121.03

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Solution

The fourth proportional to 2,969.34, 4,454.93 and 1,121.03 is: 1,681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.34 : 4,454.93 = 1,121.03 : x
  2. Step 2: Convert to fraction form
    2,969.34/4,454.93 = 1,121.03/x
  3. Step 3: Cross multiply
    2,969.34x = 4,454.93 × 1,121.03
  4. Step 4: Simplify right side
    2,969.34x = 4,994,082.30
  5. Step 5: Solve for x
    x = 4,994,082.30/2,969.34
  6. Step 6: Final answer
    x = 1,681.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.