Home / 2,755.69-4,130.80-1,292.22

Finding the Fourth Proportional to 2,755.69, 4,130.80 and 1,292.22

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Solution

The fourth proportional to 2,755.69, 4,130.80 and 1,292.22 is: 1,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.69 : 4,130.80 = 1,292.22 : x
  2. Step 2: Convert to fraction form
    2,755.69/4,130.80 = 1,292.22/x
  3. Step 3: Cross multiply
    2,755.69x = 4,130.80 × 1,292.22
  4. Step 4: Simplify right side
    2,755.69x = 5,337,899.15
  5. Step 5: Solve for x
    x = 5,337,899.15/2,755.69
  6. Step 6: Final answer
    x = 1,937.05

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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.