Home / 2,755.01-4,129.77-1,111.07

Finding the Fourth Proportional to 2,755.01, 4,129.77 and 1,111.07

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Solution

The fourth proportional to 2,755.01, 4,129.77 and 1,111.07 is: 1,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.01 : 4,129.77 = 1,111.07 : x
  2. Step 2: Convert to fraction form
    2,755.01/4,129.77 = 1,111.07/x
  3. Step 3: Cross multiply
    2,755.01x = 4,129.77 × 1,111.07
  4. Step 4: Simplify right side
    2,755.01x = 4,588,463.55
  5. Step 5: Solve for x
    x = 4,588,463.55/2,755.01
  6. Step 6: Final answer
    x = 1,665.50

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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.