Home / 1,943.70-2,916.30-1,424.22

Finding the Fourth Proportional to 1,943.70, 2,916.30 and 1,424.22

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Solution

The fourth proportional to 1,943.70, 2,916.30 and 1,424.22 is: 2,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.70 : 2,916.30 = 1,424.22 : x
  2. Step 2: Convert to fraction form
    1,943.70/2,916.30 = 1,424.22/x
  3. Step 3: Cross multiply
    1,943.70x = 2,916.30 × 1,424.22
  4. Step 4: Simplify right side
    1,943.70x = 4,153,452.79
  5. Step 5: Solve for x
    x = 4,153,452.79/1,943.70
  6. Step 6: Final answer
    x = 2,136.88

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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.