Home / 4,260.12-6,389.34-2,181.24

Finding the Fourth Proportional to 4,260.12, 6,389.34 and 2,181.24

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Solution

The fourth proportional to 4,260.12, 6,389.34 and 2,181.24 is: 3,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.12 : 6,389.34 = 2,181.24 : x
  2. Step 2: Convert to fraction form
    4,260.12/6,389.34 = 2,181.24/x
  3. Step 3: Cross multiply
    4,260.12x = 6,389.34 × 2,181.24
  4. Step 4: Simplify right side
    4,260.12x = 13,936,683.98
  5. Step 5: Solve for x
    x = 13,936,683.98/4,260.12
  6. Step 6: Final answer
    x = 3,271.43

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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.