Home / 3,005.84-4,145.77-2,586.90

Finding the Fourth Proportional to 3,005.84, 4,145.77 and 2,586.90

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Solution

The fourth proportional to 3,005.84, 4,145.77 and 2,586.90 is: 3,567.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.84 : 4,145.77 = 2,586.90 : x
  2. Step 2: Convert to fraction form
    3,005.84/4,145.77 = 2,586.90/x
  3. Step 3: Cross multiply
    3,005.84x = 4,145.77 × 2,586.90
  4. Step 4: Simplify right side
    3,005.84x = 10,724,692.41
  5. Step 5: Solve for x
    x = 10,724,692.41/3,005.84
  6. Step 6: Final answer
    x = 3,567.95

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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.