Home / 1,633.40-2,251.91-1,298.42

Finding the Fourth Proportional to 1,633.40, 2,251.91 and 1,298.42

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Solution

The fourth proportional to 1,633.40, 2,251.91 and 1,298.42 is: 1,790.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.40 : 2,251.91 = 1,298.42 : x
  2. Step 2: Convert to fraction form
    1,633.40/2,251.91 = 1,298.42/x
  3. Step 3: Cross multiply
    1,633.40x = 2,251.91 × 1,298.42
  4. Step 4: Simplify right side
    1,633.40x = 2,923,907.23
  5. Step 5: Solve for x
    x = 2,923,907.23/1,633.40
  6. Step 6: Final answer
    x = 1,790.08

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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.