Home / 2,953.56-4,431.42-1,221.24

Finding the Fourth Proportional to 2,953.56, 4,431.42 and 1,221.24

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Solution

The fourth proportional to 2,953.56, 4,431.42 and 1,221.24 is: 1,832.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.56 : 4,431.42 = 1,221.24 : x
  2. Step 2: Convert to fraction form
    2,953.56/4,431.42 = 1,221.24/x
  3. Step 3: Cross multiply
    2,953.56x = 4,431.42 × 1,221.24
  4. Step 4: Simplify right side
    2,953.56x = 5,411,827.36
  5. Step 5: Solve for x
    x = 5,411,827.36/2,953.56
  6. Step 6: Final answer
    x = 1,832.31

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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.