Home / 1,637.91-2,256.78-1,113.03

Finding the Fourth Proportional to 1,637.91, 2,256.78 and 1,113.03

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Solution

The fourth proportional to 1,637.91, 2,256.78 and 1,113.03 is: 1,533.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.91 : 2,256.78 = 1,113.03 : x
  2. Step 2: Convert to fraction form
    1,637.91/2,256.78 = 1,113.03/x
  3. Step 3: Cross multiply
    1,637.91x = 2,256.78 × 1,113.03
  4. Step 4: Simplify right side
    1,637.91x = 2,511,863.84
  5. Step 5: Solve for x
    x = 2,511,863.84/1,637.91
  6. Step 6: Final answer
    x = 1,533.58

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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.