Home / 1,426.26-2,139.18-604.35

Finding the Fourth Proportional to 1,426.26, 2,139.18 and 604.35

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Solution

The fourth proportional to 1,426.26, 2,139.18 and 604.35 is: 906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.26 : 2,139.18 = 604.35 : x
  2. Step 2: Convert to fraction form
    1,426.26/2,139.18 = 604.35/x
  3. Step 3: Cross multiply
    1,426.26x = 2,139.18 × 604.35
  4. Step 4: Simplify right side
    1,426.26x = 1,292,813.43
  5. Step 5: Solve for x
    x = 1,292,813.43/1,426.26
  6. Step 6: Final answer
    x = 906.44

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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.