Home / 4,319.46-6,480-2,127.60

Finding the Fourth Proportional to 4,319.46, 6,480 and 2,127.60

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Solution

The fourth proportional to 4,319.46, 6,480 and 2,127.60 is: 3,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.46 : 6,480 = 2,127.60 : x
  2. Step 2: Convert to fraction form
    4,319.46/6,480 = 2,127.60/x
  3. Step 3: Cross multiply
    4,319.46x = 6,480 × 2,127.60
  4. Step 4: Simplify right side
    4,319.46x = 13,786,848
  5. Step 5: Solve for x
    x = 13,786,848/4,319.46
  6. Step 6: Final answer
    x = 3,191.80

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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.