Home / 4,619.60-6,931.90-2,153.82

Finding the Fourth Proportional to 4,619.60, 6,931.90 and 2,153.82

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Solution

The fourth proportional to 4,619.60, 6,931.90 and 2,153.82 is: 3,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,619.60 : 6,931.90 = 2,153.82 : x
  2. Step 2: Convert to fraction form
    4,619.60/6,931.90 = 2,153.82/x
  3. Step 3: Cross multiply
    4,619.60x = 6,931.90 × 2,153.82
  4. Step 4: Simplify right side
    4,619.60x = 14,930,064.86
  5. Step 5: Solve for x
    x = 14,930,064.86/4,619.60
  6. Step 6: Final answer
    x = 3,231.90

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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.