Home / 3,512.09-5,264.48-1,431.24

Finding the Fourth Proportional to 3,512.09, 5,264.48 and 1,431.24

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Solution

The fourth proportional to 3,512.09, 5,264.48 and 1,431.24 is: 2,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.09 : 5,264.48 = 1,431.24 : x
  2. Step 2: Convert to fraction form
    3,512.09/5,264.48 = 1,431.24/x
  3. Step 3: Cross multiply
    3,512.09x = 5,264.48 × 1,431.24
  4. Step 4: Simplify right side
    3,512.09x = 7,534,710.14
  5. Step 5: Solve for x
    x = 7,534,710.14/3,512.09
  6. Step 6: Final answer
    x = 2,145.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.