Home / 1,637.52-2,456.62-905.55

Finding the Fourth Proportional to 1,637.52, 2,456.62 and 905.55

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Solution

The fourth proportional to 1,637.52, 2,456.62 and 905.55 is: 1,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.52 : 2,456.62 = 905.55 : x
  2. Step 2: Convert to fraction form
    1,637.52/2,456.62 = 905.55/x
  3. Step 3: Cross multiply
    1,637.52x = 2,456.62 × 905.55
  4. Step 4: Simplify right side
    1,637.52x = 2,224,600.22
  5. Step 5: Solve for x
    x = 2,224,600.22/1,637.52
  6. Step 6: Final answer
    x = 1,358.52

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1.5x scale

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.