Home / 2,253.57-3,109.07-1,369.05

Finding the Fourth Proportional to 2,253.57, 3,109.07 and 1,369.05

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Solution

The fourth proportional to 2,253.57, 3,109.07 and 1,369.05 is: 1,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.57 : 3,109.07 = 1,369.05 : x
  2. Step 2: Convert to fraction form
    2,253.57/3,109.07 = 1,369.05/x
  3. Step 3: Cross multiply
    2,253.57x = 3,109.07 × 1,369.05
  4. Step 4: Simplify right side
    2,253.57x = 4,256,465.44
  5. Step 5: Solve for x
    x = 4,256,465.44/2,253.57
  6. Step 6: Final answer
    x = 1,888.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.