Home / 2,013.33-2,778.48-1,129.11

Finding the Fourth Proportional to 2,013.33, 2,778.48 and 1,129.11

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Solution

The fourth proportional to 2,013.33, 2,778.48 and 1,129.11 is: 1,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.33 : 2,778.48 = 1,129.11 : x
  2. Step 2: Convert to fraction form
    2,013.33/2,778.48 = 1,129.11/x
  3. Step 3: Cross multiply
    2,013.33x = 2,778.48 × 1,129.11
  4. Step 4: Simplify right side
    2,013.33x = 3,137,209.55
  5. Step 5: Solve for x
    x = 3,137,209.55/2,013.33
  6. Step 6: Final answer
    x = 1,558.22

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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.