Home / 2,253.36-3,109.60-1,245.06

Finding the Fourth Proportional to 2,253.36, 3,109.60 and 1,245.06

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Solution

The fourth proportional to 2,253.36, 3,109.60 and 1,245.06 is: 1,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.36 : 3,109.60 = 1,245.06 : x
  2. Step 2: Convert to fraction form
    2,253.36/3,109.60 = 1,245.06/x
  3. Step 3: Cross multiply
    2,253.36x = 3,109.60 × 1,245.06
  4. Step 4: Simplify right side
    2,253.36x = 3,871,638.58
  5. Step 5: Solve for x
    x = 3,871,638.58/2,253.36
  6. Step 6: Final answer
    x = 1,718.16

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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.