Home / 2,126.63-3,189.81-1,305.02

Finding the Fourth Proportional to 2,126.63, 3,189.81 and 1,305.02

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Solution

The fourth proportional to 2,126.63, 3,189.81 and 1,305.02 is: 1,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.63 : 3,189.81 = 1,305.02 : x
  2. Step 2: Convert to fraction form
    2,126.63/3,189.81 = 1,305.02/x
  3. Step 3: Cross multiply
    2,126.63x = 3,189.81 × 1,305.02
  4. Step 4: Simplify right side
    2,126.63x = 4,162,778.71
  5. Step 5: Solve for x
    x = 4,162,778.71/2,126.63
  6. Step 6: Final answer
    x = 1,957.45

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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.