Home / 2,225.20-3,072.36-1,480.20

Finding the Fourth Proportional to 2,225.20, 3,072.36 and 1,480.20

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Solution

The fourth proportional to 2,225.20, 3,072.36 and 1,480.20 is: 2,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.20 : 3,072.36 = 1,480.20 : x
  2. Step 2: Convert to fraction form
    2,225.20/3,072.36 = 1,480.20/x
  3. Step 3: Cross multiply
    2,225.20x = 3,072.36 × 1,480.20
  4. Step 4: Simplify right side
    2,225.20x = 4,547,707.27
  5. Step 5: Solve for x
    x = 4,547,707.27/2,225.20
  6. Step 6: Final answer
    x = 2,043.73

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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.