Home / 3,931.96-5,904.21-2,289.70

Finding the Fourth Proportional to 3,931.96, 5,904.21 and 2,289.70

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Solution

The fourth proportional to 3,931.96, 5,904.21 and 2,289.70 is: 3,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.96 : 5,904.21 = 2,289.70 : x
  2. Step 2: Convert to fraction form
    3,931.96/5,904.21 = 2,289.70/x
  3. Step 3: Cross multiply
    3,931.96x = 5,904.21 × 2,289.70
  4. Step 4: Simplify right side
    3,931.96x = 13,518,869.64
  5. Step 5: Solve for x
    x = 13,518,869.64/3,931.96
  6. Step 6: Final answer
    x = 3,438.20

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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.