Home / 2,752.09-4,128.14-1,108.26

Finding the Fourth Proportional to 2,752.09, 4,128.14 and 1,108.26

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Solution

The fourth proportional to 2,752.09, 4,128.14 and 1,108.26 is: 1,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.09 : 4,128.14 = 1,108.26 : x
  2. Step 2: Convert to fraction form
    2,752.09/4,128.14 = 1,108.26/x
  3. Step 3: Cross multiply
    2,752.09x = 4,128.14 × 1,108.26
  4. Step 4: Simplify right side
    2,752.09x = 4,575,026.25
  5. Step 5: Solve for x
    x = 4,575,026.25/2,752.09
  6. Step 6: Final answer
    x = 1,662.38

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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.