Home / 6,420.63-9,631.75-2,204.70

Finding the Fourth Proportional to 6,420.63, 9,631.75 and 2,204.70

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Solution

The fourth proportional to 6,420.63, 9,631.75 and 2,204.70 is: 3,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.63 : 9,631.75 = 2,204.70 : x
  2. Step 2: Convert to fraction form
    6,420.63/9,631.75 = 2,204.70/x
  3. Step 3: Cross multiply
    6,420.63x = 9,631.75 × 2,204.70
  4. Step 4: Simplify right side
    6,420.63x = 21,235,119.23
  5. Step 5: Solve for x
    x = 21,235,119.23/6,420.63
  6. Step 6: Final answer
    x = 3,307.33

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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.