Home / 2,969.26-4,451.56-1,120.30

Finding the Fourth Proportional to 2,969.26, 4,451.56 and 1,120.30

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Solution

The fourth proportional to 2,969.26, 4,451.56 and 1,120.30 is: 1,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.26 : 4,451.56 = 1,120.30 : x
  2. Step 2: Convert to fraction form
    2,969.26/4,451.56 = 1,120.30/x
  3. Step 3: Cross multiply
    2,969.26x = 4,451.56 × 1,120.30
  4. Step 4: Simplify right side
    2,969.26x = 4,987,068.74
  5. Step 5: Solve for x
    x = 4,987,068.74/2,969.26
  6. Step 6: Final answer
    x = 1,679.57

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1.5x scale

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.