Home / 2,224.45-3,070.38-1,561.47

Finding the Fourth Proportional to 2,224.45, 3,070.38 and 1,561.47

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Solution

The fourth proportional to 2,224.45, 3,070.38 and 1,561.47 is: 2,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.45 : 3,070.38 = 1,561.47 : x
  2. Step 2: Convert to fraction form
    2,224.45/3,070.38 = 1,561.47/x
  3. Step 3: Cross multiply
    2,224.45x = 3,070.38 × 1,561.47
  4. Step 4: Simplify right side
    2,224.45x = 4,794,306.26
  5. Step 5: Solve for x
    x = 4,794,306.26/2,224.45
  6. Step 6: Final answer
    x = 2,155.28

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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.