Home / 3,487.86-4,813.82-2,692.34

Finding the Fourth Proportional to 3,487.86, 4,813.82 and 2,692.34

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Solution

The fourth proportional to 3,487.86, 4,813.82 and 2,692.34 is: 3,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.86 : 4,813.82 = 2,692.34 : x
  2. Step 2: Convert to fraction form
    3,487.86/4,813.82 = 2,692.34/x
  3. Step 3: Cross multiply
    3,487.86x = 4,813.82 × 2,692.34
  4. Step 4: Simplify right side
    3,487.86x = 12,960,440.14
  5. Step 5: Solve for x
    x = 12,960,440.14/3,487.86
  6. Step 6: Final answer
    x = 3,715.87

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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.