Home / 3,126.12-4,688.22-2,158.44

Finding the Fourth Proportional to 3,126.12, 4,688.22 and 2,158.44

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Solution

The fourth proportional to 3,126.12, 4,688.22 and 2,158.44 is: 3,237.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.12 : 4,688.22 = 2,158.44 : x
  2. Step 2: Convert to fraction form
    3,126.12/4,688.22 = 2,158.44/x
  3. Step 3: Cross multiply
    3,126.12x = 4,688.22 × 2,158.44
  4. Step 4: Simplify right side
    3,126.12x = 10,119,241.58
  5. Step 5: Solve for x
    x = 10,119,241.58/3,126.12
  6. Step 6: Final answer
    x = 3,237.00

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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.