Home / 1,867.40-2,576.70-1,203.92

Finding the Fourth Proportional to 1,867.40, 2,576.70 and 1,203.92

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Solution

The fourth proportional to 1,867.40, 2,576.70 and 1,203.92 is: 1,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.40 : 2,576.70 = 1,203.92 : x
  2. Step 2: Convert to fraction form
    1,867.40/2,576.70 = 1,203.92/x
  3. Step 3: Cross multiply
    1,867.40x = 2,576.70 × 1,203.92
  4. Step 4: Simplify right side
    1,867.40x = 3,102,140.66
  5. Step 5: Solve for x
    x = 3,102,140.66/1,867.40
  6. Step 6: Final answer
    x = 1,661.21

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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.