Home / 3,261.56-4,888.50-1,311.16

Finding the Fourth Proportional to 3,261.56, 4,888.50 and 1,311.16

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Solution

The fourth proportional to 3,261.56, 4,888.50 and 1,311.16 is: 1,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.56 : 4,888.50 = 1,311.16 : x
  2. Step 2: Convert to fraction form
    3,261.56/4,888.50 = 1,311.16/x
  3. Step 3: Cross multiply
    3,261.56x = 4,888.50 × 1,311.16
  4. Step 4: Simplify right side
    3,261.56x = 6,409,605.66
  5. Step 5: Solve for x
    x = 6,409,605.66/3,261.56
  6. Step 6: Final answer
    x = 1,965.20

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1.5x scale

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.