Home / 3,808.12-5,710.72-1,342.12

Finding the Fourth Proportional to 3,808.12, 5,710.72 and 1,342.12

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Solution

The fourth proportional to 3,808.12, 5,710.72 and 1,342.12 is: 2,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.12 : 5,710.72 = 1,342.12 : x
  2. Step 2: Convert to fraction form
    3,808.12/5,710.72 = 1,342.12/x
  3. Step 3: Cross multiply
    3,808.12x = 5,710.72 × 1,342.12
  4. Step 4: Simplify right side
    3,808.12x = 7,664,471.53
  5. Step 5: Solve for x
    x = 7,664,471.53/3,808.12
  6. Step 6: Final answer
    x = 2,012.67

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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.