Home / 4,931.63-7,398.74-2,158.85

Finding the Fourth Proportional to 4,931.63, 7,398.74 and 2,158.85

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Solution

The fourth proportional to 4,931.63, 7,398.74 and 2,158.85 is: 3,238.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.63 : 7,398.74 = 2,158.85 : x
  2. Step 2: Convert to fraction form
    4,931.63/7,398.74 = 2,158.85/x
  3. Step 3: Cross multiply
    4,931.63x = 7,398.74 × 2,158.85
  4. Step 4: Simplify right side
    4,931.63x = 15,972,793.74
  5. Step 5: Solve for x
    x = 15,972,793.74/4,931.63
  6. Step 6: Final answer
    x = 3,238.84

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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.