Home / 7,178.21-10,769.40-4,406.66

Finding the Fourth Proportional to 7,178.21, 10,769.40 and 4,406.66

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Solution

The fourth proportional to 7,178.21, 10,769.40 and 4,406.66 is: 6,611.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.21 : 10,769.40 = 4,406.66 : x
  2. Step 2: Convert to fraction form
    7,178.21/10,769.40 = 4,406.66/x
  3. Step 3: Cross multiply
    7,178.21x = 10,769.40 × 4,406.66
  4. Step 4: Simplify right side
    7,178.21x = 47,457,030.36
  5. Step 5: Solve for x
    x = 47,457,030.36/7,178.21
  6. Step 6: Final answer
    x = 6,611.27

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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.