Home / 2,953.13-4,431.21-1,309.28

Finding the Fourth Proportional to 2,953.13, 4,431.21 and 1,309.28

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Solution

The fourth proportional to 2,953.13, 4,431.21 and 1,309.28 is: 1,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.13 : 4,431.21 = 1,309.28 : x
  2. Step 2: Convert to fraction form
    2,953.13/4,431.21 = 1,309.28/x
  3. Step 3: Cross multiply
    2,953.13x = 4,431.21 × 1,309.28
  4. Step 4: Simplify right side
    2,953.13x = 5,801,672.47
  5. Step 5: Solve for x
    x = 5,801,672.47/2,953.13
  6. Step 6: Final answer
    x = 1,964.59

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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.