Home / 1,341.40-2,012.20-475.60

Finding the Fourth Proportional to 1,341.40, 2,012.20 and 475.60

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Solution

The fourth proportional to 1,341.40, 2,012.20 and 475.60 is: 713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.40 : 2,012.20 = 475.60 : x
  2. Step 2: Convert to fraction form
    1,341.40/2,012.20 = 475.60/x
  3. Step 3: Cross multiply
    1,341.40x = 2,012.20 × 475.60
  4. Step 4: Simplify right side
    1,341.40x = 957,002.32
  5. Step 5: Solve for x
    x = 957,002.32/1,341.40
  6. Step 6: Final answer
    x = 713.44

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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.