Home / 2,445.45-3,670.19-1,213.23

Finding the Fourth Proportional to 2,445.45, 3,670.19 and 1,213.23

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Solution

The fourth proportional to 2,445.45, 3,670.19 and 1,213.23 is: 1,820.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.45 : 3,670.19 = 1,213.23 : x
  2. Step 2: Convert to fraction form
    2,445.45/3,670.19 = 1,213.23/x
  3. Step 3: Cross multiply
    2,445.45x = 3,670.19 × 1,213.23
  4. Step 4: Simplify right side
    2,445.45x = 4,452,784.61
  5. Step 5: Solve for x
    x = 4,452,784.61/2,445.45
  6. Step 6: Final answer
    x = 1,820.84

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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.