Home / 2,223.76-3,336.12-926.20

Finding the Fourth Proportional to 2,223.76, 3,336.12 and 926.20

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Solution

The fourth proportional to 2,223.76, 3,336.12 and 926.20 is: 1,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.76 : 3,336.12 = 926.20 : x
  2. Step 2: Convert to fraction form
    2,223.76/3,336.12 = 926.20/x
  3. Step 3: Cross multiply
    2,223.76x = 3,336.12 × 926.20
  4. Step 4: Simplify right side
    2,223.76x = 3,089,914.34
  5. Step 5: Solve for x
    x = 3,089,914.34/2,223.76
  6. Step 6: Final answer
    x = 1,389.50

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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.