Home / 4,311.72-6,466.23-1,389.42

Finding the Fourth Proportional to 4,311.72, 6,466.23 and 1,389.42

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Solution

The fourth proportional to 4,311.72, 6,466.23 and 1,389.42 is: 2,083.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.72 : 6,466.23 = 1,389.42 : x
  2. Step 2: Convert to fraction form
    4,311.72/6,466.23 = 1,389.42/x
  3. Step 3: Cross multiply
    4,311.72x = 6,466.23 × 1,389.42
  4. Step 4: Simplify right side
    4,311.72x = 8,984,309.29
  5. Step 5: Solve for x
    x = 8,984,309.29/4,311.72
  6. Step 6: Final answer
    x = 2,083.69

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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.