Home / 2,905.22-4,358.64-1,261.91

Finding the Fourth Proportional to 2,905.22, 4,358.64 and 1,261.91

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Solution

The fourth proportional to 2,905.22, 4,358.64 and 1,261.91 is: 1,893.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.22 : 4,358.64 = 1,261.91 : x
  2. Step 2: Convert to fraction form
    2,905.22/4,358.64 = 1,261.91/x
  3. Step 3: Cross multiply
    2,905.22x = 4,358.64 × 1,261.91
  4. Step 4: Simplify right side
    2,905.22x = 5,500,211.40
  5. Step 5: Solve for x
    x = 5,500,211.40/2,905.22
  6. Step 6: Final answer
    x = 1,893.22

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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.