Home / 7,131.04-10,692.94-3,381.68

Finding the Fourth Proportional to 7,131.04, 10,692.94 and 3,381.68

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Solution

The fourth proportional to 7,131.04, 10,692.94 and 3,381.68 is: 5,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.04 : 10,692.94 = 3,381.68 : x
  2. Step 2: Convert to fraction form
    7,131.04/10,692.94 = 3,381.68/x
  3. Step 3: Cross multiply
    7,131.04x = 10,692.94 × 3,381.68
  4. Step 4: Simplify right side
    7,131.04x = 36,160,101.34
  5. Step 5: Solve for x
    x = 36,160,101.34/7,131.04
  6. Step 6: Final answer
    x = 5,070.80

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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.