Home / 2,670.11-4,004.09-1,109.05

Finding the Fourth Proportional to 2,670.11, 4,004.09 and 1,109.05

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Solution

The fourth proportional to 2,670.11, 4,004.09 and 1,109.05 is: 1,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.11 : 4,004.09 = 1,109.05 : x
  2. Step 2: Convert to fraction form
    2,670.11/4,004.09 = 1,109.05/x
  3. Step 3: Cross multiply
    2,670.11x = 4,004.09 × 1,109.05
  4. Step 4: Simplify right side
    2,670.11x = 4,440,736.01
  5. Step 5: Solve for x
    x = 4,440,736.01/2,670.11
  6. Step 6: Final answer
    x = 1,663.13

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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.