Home / 2,753.07-4,129.74-1,109.40

Finding the Fourth Proportional to 2,753.07, 4,129.74 and 1,109.40

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Solution

The fourth proportional to 2,753.07, 4,129.74 and 1,109.40 is: 1,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.07 : 4,129.74 = 1,109.40 : x
  2. Step 2: Convert to fraction form
    2,753.07/4,129.74 = 1,109.40/x
  3. Step 3: Cross multiply
    2,753.07x = 4,129.74 × 1,109.40
  4. Step 4: Simplify right side
    2,753.07x = 4,581,533.56
  5. Step 5: Solve for x
    x = 4,581,533.56/2,753.07
  6. Step 6: Final answer
    x = 1,664.15

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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.