Home / 1,418.10-1,957.14-1,372.74

Finding the Fourth Proportional to 1,418.10, 1,957.14 and 1,372.74

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Solution

The fourth proportional to 1,418.10, 1,957.14 and 1,372.74 is: 1,894.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.10 : 1,957.14 = 1,372.74 : x
  2. Step 2: Convert to fraction form
    1,418.10/1,957.14 = 1,372.74/x
  3. Step 3: Cross multiply
    1,418.10x = 1,957.14 × 1,372.74
  4. Step 4: Simplify right side
    1,418.10x = 2,686,644.36
  5. Step 5: Solve for x
    x = 2,686,644.36/1,418.10
  6. Step 6: Final answer
    x = 1,894.54

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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.