Home / 2,969.40-4,454.46-1,120.08

Finding the Fourth Proportional to 2,969.40, 4,454.46 and 1,120.08

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Solution

The fourth proportional to 2,969.40, 4,454.46 and 1,120.08 is: 1,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.40 : 4,454.46 = 1,120.08 : x
  2. Step 2: Convert to fraction form
    2,969.40/4,454.46 = 1,120.08/x
  3. Step 3: Cross multiply
    2,969.40x = 4,454.46 × 1,120.08
  4. Step 4: Simplify right side
    2,969.40x = 4,989,351.56
  5. Step 5: Solve for x
    x = 4,989,351.56/2,969.40
  6. Step 6: Final answer
    x = 1,680.26

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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.