Home / 1,385.21-2,075.94-604.97

Finding the Fourth Proportional to 1,385.21, 2,075.94 and 604.97

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Solution

The fourth proportional to 1,385.21, 2,075.94 and 604.97 is: 906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385.21 : 2,075.94 = 604.97 : x
  2. Step 2: Convert to fraction form
    1,385.21/2,075.94 = 604.97/x
  3. Step 3: Cross multiply
    1,385.21x = 2,075.94 × 604.97
  4. Step 4: Simplify right side
    1,385.21x = 1,255,871.04
  5. Step 5: Solve for x
    x = 1,255,871.04/1,385.21
  6. Step 6: Final answer
    x = 906.63

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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.