Home / 3,261.06-4,890.78-1,313.01

Finding the Fourth Proportional to 3,261.06, 4,890.78 and 1,313.01

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Solution

The fourth proportional to 3,261.06, 4,890.78 and 1,313.01 is: 1,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.06 : 4,890.78 = 1,313.01 : x
  2. Step 2: Convert to fraction form
    3,261.06/4,890.78 = 1,313.01/x
  3. Step 3: Cross multiply
    3,261.06x = 4,890.78 × 1,313.01
  4. Step 4: Simplify right side
    3,261.06x = 6,421,643.05
  5. Step 5: Solve for x
    x = 6,421,643.05/3,261.06
  6. Step 6: Final answer
    x = 1,969.19

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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.