Home / 4,431.12-6,647.56-1,311.18

Finding the Fourth Proportional to 4,431.12, 6,647.56 and 1,311.18

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Solution

The fourth proportional to 4,431.12, 6,647.56 and 1,311.18 is: 1,967.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,431.12 : 6,647.56 = 1,311.18 : x
  2. Step 2: Convert to fraction form
    4,431.12/6,647.56 = 1,311.18/x
  3. Step 3: Cross multiply
    4,431.12x = 6,647.56 × 1,311.18
  4. Step 4: Simplify right side
    4,431.12x = 8,716,147.72
  5. Step 5: Solve for x
    x = 8,716,147.72/4,431.12
  6. Step 6: Final answer
    x = 1,967.03

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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.