Home / 1,889.91-2,829.56-1,426.23

Finding the Fourth Proportional to 1,889.91, 2,829.56 and 1,426.23

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Solution

The fourth proportional to 1,889.91, 2,829.56 and 1,426.23 is: 2,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.91 : 2,829.56 = 1,426.23 : x
  2. Step 2: Convert to fraction form
    1,889.91/2,829.56 = 1,426.23/x
  3. Step 3: Cross multiply
    1,889.91x = 2,829.56 × 1,426.23
  4. Step 4: Simplify right side
    1,889.91x = 4,035,596.23
  5. Step 5: Solve for x
    x = 4,035,596.23/1,889.91
  6. Step 6: Final answer
    x = 2,135.34

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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.