Home / 1,512.24-2,087.72-1,113.56

Finding the Fourth Proportional to 1,512.24, 2,087.72 and 1,113.56

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Solution

The fourth proportional to 1,512.24, 2,087.72 and 1,113.56 is: 1,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.24 : 2,087.72 = 1,113.56 : x
  2. Step 2: Convert to fraction form
    1,512.24/2,087.72 = 1,113.56/x
  3. Step 3: Cross multiply
    1,512.24x = 2,087.72 × 1,113.56
  4. Step 4: Simplify right side
    1,512.24x = 2,324,801.48
  5. Step 5: Solve for x
    x = 2,324,801.48/1,512.24
  6. Step 6: Final answer
    x = 1,537.32

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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.