Home / 1,512.22-2,087.43-1,070.57

Finding the Fourth Proportional to 1,512.22, 2,087.43 and 1,070.57

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Solution

The fourth proportional to 1,512.22, 2,087.43 and 1,070.57 is: 1,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.22 : 2,087.43 = 1,070.57 : x
  2. Step 2: Convert to fraction form
    1,512.22/2,087.43 = 1,070.57/x
  3. Step 3: Cross multiply
    1,512.22x = 2,087.43 × 1,070.57
  4. Step 4: Simplify right side
    1,512.22x = 2,234,739.94
  5. Step 5: Solve for x
    x = 2,234,739.94/1,512.22
  6. Step 6: Final answer
    x = 1,477.79

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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.