Home / 4,207.84-6,309.76-1,285.36

Finding the Fourth Proportional to 4,207.84, 6,309.76 and 1,285.36

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Solution

The fourth proportional to 4,207.84, 6,309.76 and 1,285.36 is: 1,927.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.84 : 6,309.76 = 1,285.36 : x
  2. Step 2: Convert to fraction form
    4,207.84/6,309.76 = 1,285.36/x
  3. Step 3: Cross multiply
    4,207.84x = 6,309.76 × 1,285.36
  4. Step 4: Simplify right side
    4,207.84x = 8,110,313.11
  5. Step 5: Solve for x
    x = 8,110,313.11/4,207.84
  6. Step 6: Final answer
    x = 1,927.43

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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.