Home / 1,635.17-2,256.47-936.41

Finding the Fourth Proportional to 1,635.17, 2,256.47 and 936.41

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Solution

The fourth proportional to 1,635.17, 2,256.47 and 936.41 is: 1,292.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.17 : 2,256.47 = 936.41 : x
  2. Step 2: Convert to fraction form
    1,635.17/2,256.47 = 936.41/x
  3. Step 3: Cross multiply
    1,635.17x = 2,256.47 × 936.41
  4. Step 4: Simplify right side
    1,635.17x = 2,112,969.79
  5. Step 5: Solve for x
    x = 2,112,969.79/1,635.17
  6. Step 6: Final answer
    x = 1,292.21

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1.5x scale

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.