Home / 4,311.80-6,468.60-1,392.11

Finding the Fourth Proportional to 4,311.80, 6,468.60 and 1,392.11

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Solution

The fourth proportional to 4,311.80, 6,468.60 and 1,392.11 is: 2,088.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.80 : 6,468.60 = 1,392.11 : x
  2. Step 2: Convert to fraction form
    4,311.80/6,468.60 = 1,392.11/x
  3. Step 3: Cross multiply
    4,311.80x = 6,468.60 × 1,392.11
  4. Step 4: Simplify right side
    4,311.80x = 9,005,002.75
  5. Step 5: Solve for x
    x = 9,005,002.75/4,311.80
  6. Step 6: Final answer
    x = 2,088.46

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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.