Home / 3,077.88-4,615.80-1,692.78

Finding the Fourth Proportional to 3,077.88, 4,615.80 and 1,692.78

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Solution

The fourth proportional to 3,077.88, 4,615.80 and 1,692.78 is: 2,538.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.88 : 4,615.80 = 1,692.78 : x
  2. Step 2: Convert to fraction form
    3,077.88/4,615.80 = 1,692.78/x
  3. Step 3: Cross multiply
    3,077.88x = 4,615.80 × 1,692.78
  4. Step 4: Simplify right side
    3,077.88x = 7,813,533.92
  5. Step 5: Solve for x
    x = 7,813,533.92/3,077.88
  6. Step 6: Final answer
    x = 2,538.61

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1.5x scale

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.