Home / 3,261.30-4,892.63-1,313.50

Finding the Fourth Proportional to 3,261.30, 4,892.63 and 1,313.50

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Solution

The fourth proportional to 3,261.30, 4,892.63 and 1,313.50 is: 1,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.30 : 4,892.63 = 1,313.50 : x
  2. Step 2: Convert to fraction form
    3,261.30/4,892.63 = 1,313.50/x
  3. Step 3: Cross multiply
    3,261.30x = 4,892.63 × 1,313.50
  4. Step 4: Simplify right side
    3,261.30x = 6,426,469.51
  5. Step 5: Solve for x
    x = 6,426,469.51/3,261.30
  6. Step 6: Final answer
    x = 1,970.52

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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.