Home / 1,339.30-2,008.69-461.77

Finding the Fourth Proportional to 1,339.30, 2,008.69 and 461.77

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Solution

The fourth proportional to 1,339.30, 2,008.69 and 461.77 is: 692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.30 : 2,008.69 = 461.77 : x
  2. Step 2: Convert to fraction form
    1,339.30/2,008.69 = 461.77/x
  3. Step 3: Cross multiply
    1,339.30x = 2,008.69 × 461.77
  4. Step 4: Simplify right side
    1,339.30x = 927,552.78
  5. Step 5: Solve for x
    x = 927,552.78/1,339.30
  6. Step 6: Final answer
    x = 692.57

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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.