Home / 1,556.72-2,334.40-826.14

Finding the Fourth Proportional to 1,556.72, 2,334.40 and 826.14

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Solution

The fourth proportional to 1,556.72, 2,334.40 and 826.14 is: 1,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.72 : 2,334.40 = 826.14 : x
  2. Step 2: Convert to fraction form
    1,556.72/2,334.40 = 826.14/x
  3. Step 3: Cross multiply
    1,556.72x = 2,334.40 × 826.14
  4. Step 4: Simplify right side
    1,556.72x = 1,928,541.22
  5. Step 5: Solve for x
    x = 1,928,541.22/1,556.72
  6. Step 6: Final answer
    x = 1,238.85

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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.