Home / 1,580.43-2,367.40-1,270.61

Finding the Fourth Proportional to 1,580.43, 2,367.40 and 1,270.61

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Solution

The fourth proportional to 1,580.43, 2,367.40 and 1,270.61 is: 1,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580.43 : 2,367.40 = 1,270.61 : x
  2. Step 2: Convert to fraction form
    1,580.43/2,367.40 = 1,270.61/x
  3. Step 3: Cross multiply
    1,580.43x = 2,367.40 × 1,270.61
  4. Step 4: Simplify right side
    1,580.43x = 3,008,042.11
  5. Step 5: Solve for x
    x = 3,008,042.11/1,580.43
  6. Step 6: Final answer
    x = 1,903.31

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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.