Home / 3,840.19-5,760.04-1,890.67

Finding the Fourth Proportional to 3,840.19, 5,760.04 and 1,890.67

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Solution

The fourth proportional to 3,840.19, 5,760.04 and 1,890.67 is: 2,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.19 : 5,760.04 = 1,890.67 : x
  2. Step 2: Convert to fraction form
    3,840.19/5,760.04 = 1,890.67/x
  3. Step 3: Cross multiply
    3,840.19x = 5,760.04 × 1,890.67
  4. Step 4: Simplify right side
    3,840.19x = 10,890,334.83
  5. Step 5: Solve for x
    x = 10,890,334.83/3,840.19
  6. Step 6: Final answer
    x = 2,835.88

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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.