Home / 5,211.30-7,808.72-4,178.01

Finding the Fourth Proportional to 5,211.30, 7,808.72 and 4,178.01

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Solution

The fourth proportional to 5,211.30, 7,808.72 and 4,178.01 is: 6,260.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.30 : 7,808.72 = 4,178.01 : x
  2. Step 2: Convert to fraction form
    5,211.30/7,808.72 = 4,178.01/x
  3. Step 3: Cross multiply
    5,211.30x = 7,808.72 × 4,178.01
  4. Step 4: Simplify right side
    5,211.30x = 32,624,889.36
  5. Step 5: Solve for x
    x = 32,624,889.36/5,211.30
  6. Step 6: Final answer
    x = 6,260.41

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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.