Home / 3,259.11-4,888.85-1,311.06

Finding the Fourth Proportional to 3,259.11, 4,888.85 and 1,311.06

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Solution

The fourth proportional to 3,259.11, 4,888.85 and 1,311.06 is: 1,966.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.11 : 4,888.85 = 1,311.06 : x
  2. Step 2: Convert to fraction form
    3,259.11/4,888.85 = 1,311.06/x
  3. Step 3: Cross multiply
    3,259.11x = 4,888.85 × 1,311.06
  4. Step 4: Simplify right side
    3,259.11x = 6,409,569.13
  5. Step 5: Solve for x
    x = 6,409,569.13/3,259.11
  6. Step 6: Final answer
    x = 1,966.66

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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.