Home / 1,633.85-2,254.65-935.21

Finding the Fourth Proportional to 1,633.85, 2,254.65 and 935.21

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Solution

The fourth proportional to 1,633.85, 2,254.65 and 935.21 is: 1,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.85 : 2,254.65 = 935.21 : x
  2. Step 2: Convert to fraction form
    1,633.85/2,254.65 = 935.21/x
  3. Step 3: Cross multiply
    1,633.85x = 2,254.65 × 935.21
  4. Step 4: Simplify right side
    1,633.85x = 2,108,571.23
  5. Step 5: Solve for x
    x = 2,108,571.23/1,633.85
  6. Step 6: Final answer
    x = 1,290.55

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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.