Home / 1,336.20-2,004.30-470.60

Finding the Fourth Proportional to 1,336.20, 2,004.30 and 470.60

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Solution

The fourth proportional to 1,336.20, 2,004.30 and 470.60 is: 705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.20 : 2,004.30 = 470.60 : x
  2. Step 2: Convert to fraction form
    1,336.20/2,004.30 = 470.60/x
  3. Step 3: Cross multiply
    1,336.20x = 2,004.30 × 470.60
  4. Step 4: Simplify right side
    1,336.20x = 943,223.58
  5. Step 5: Solve for x
    x = 943,223.58/1,336.20
  6. Step 6: Final answer
    x = 705.90

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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.