Home / 1,908.90-2,636.86-1,537.32

Finding the Fourth Proportional to 1,908.90, 2,636.86 and 1,537.32

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Solution

The fourth proportional to 1,908.90, 2,636.86 and 1,537.32 is: 2,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.90 : 2,636.86 = 1,537.32 : x
  2. Step 2: Convert to fraction form
    1,908.90/2,636.86 = 1,537.32/x
  3. Step 3: Cross multiply
    1,908.90x = 2,636.86 × 1,537.32
  4. Step 4: Simplify right side
    1,908.90x = 4,053,697.62
  5. Step 5: Solve for x
    x = 4,053,697.62/1,908.90
  6. Step 6: Final answer
    x = 2,123.58

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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.