Home / 2,223.90-3,338.91-1,129.02

Finding the Fourth Proportional to 2,223.90, 3,338.91 and 1,129.02

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Solution

The fourth proportional to 2,223.90, 3,338.91 and 1,129.02 is: 1,695.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.90 : 3,338.91 = 1,129.02 : x
  2. Step 2: Convert to fraction form
    2,223.90/3,338.91 = 1,129.02/x
  3. Step 3: Cross multiply
    2,223.90x = 3,338.91 × 1,129.02
  4. Step 4: Simplify right side
    2,223.90x = 3,769,696.17
  5. Step 5: Solve for x
    x = 3,769,696.17/2,223.90
  6. Step 6: Final answer
    x = 1,695.08

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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.