Home / 2,224.20-3,070.47-1,479.40

Finding the Fourth Proportional to 2,224.20, 3,070.47 and 1,479.40

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Solution

The fourth proportional to 2,224.20, 3,070.47 and 1,479.40 is: 2,042.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.20 : 3,070.47 = 1,479.40 : x
  2. Step 2: Convert to fraction form
    2,224.20/3,070.47 = 1,479.40/x
  3. Step 3: Cross multiply
    2,224.20x = 3,070.47 × 1,479.40
  4. Step 4: Simplify right side
    2,224.20x = 4,542,453.32
  5. Step 5: Solve for x
    x = 4,542,453.32/2,224.20
  6. Step 6: Final answer
    x = 2,042.29

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1.5x scale

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.