Home / 4,272.84-6,409.46-1,311.07

Finding the Fourth Proportional to 4,272.84, 6,409.46 and 1,311.07

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Solution

The fourth proportional to 4,272.84, 6,409.46 and 1,311.07 is: 1,966.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.84 : 6,409.46 = 1,311.07 : x
  2. Step 2: Convert to fraction form
    4,272.84/6,409.46 = 1,311.07/x
  3. Step 3: Cross multiply
    4,272.84x = 6,409.46 × 1,311.07
  4. Step 4: Simplify right side
    4,272.84x = 8,403,249.99
  5. Step 5: Solve for x
    x = 8,403,249.99/4,272.84
  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.