Home / 2,225.74-3,336.64-1,129.54

Finding the Fourth Proportional to 2,225.74, 3,336.64 and 1,129.54

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Solution

The fourth proportional to 2,225.74, 3,336.64 and 1,129.54 is: 1,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.74 : 3,336.64 = 1,129.54 : x
  2. Step 2: Convert to fraction form
    2,225.74/3,336.64 = 1,129.54/x
  3. Step 3: Cross multiply
    2,225.74x = 3,336.64 × 1,129.54
  4. Step 4: Simplify right side
    2,225.74x = 3,768,868.35
  5. Step 5: Solve for x
    x = 3,768,868.35/2,225.74
  6. Step 6: Final answer
    x = 1,693.31

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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.