Home / 1,576.34-2,177.56-1,263.68

Finding the Fourth Proportional to 1,576.34, 2,177.56 and 1,263.68

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Solution

The fourth proportional to 1,576.34, 2,177.56 and 1,263.68 is: 1,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.34 : 2,177.56 = 1,263.68 : x
  2. Step 2: Convert to fraction form
    1,576.34/2,177.56 = 1,263.68/x
  3. Step 3: Cross multiply
    1,576.34x = 2,177.56 × 1,263.68
  4. Step 4: Simplify right side
    1,576.34x = 2,751,739.02
  5. Step 5: Solve for x
    x = 2,751,739.02/1,576.34
  6. Step 6: Final answer
    x = 1,745.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.