Home / 7,729.49-11,590.35-3,781.05

Finding the Fourth Proportional to 7,729.49, 11,590.35 and 3,781.05

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Solution

The fourth proportional to 7,729.49, 11,590.35 and 3,781.05 is: 5,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729.49 : 11,590.35 = 3,781.05 : x
  2. Step 2: Convert to fraction form
    7,729.49/11,590.35 = 3,781.05/x
  3. Step 3: Cross multiply
    7,729.49x = 11,590.35 × 3,781.05
  4. Step 4: Simplify right side
    7,729.49x = 43,823,692.87
  5. Step 5: Solve for x
    x = 43,823,692.87/7,729.49
  6. Step 6: Final answer
    x = 5,669.67

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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.