Home / 5,412.21-8,118.36-1,516.56

Finding the Fourth Proportional to 5,412.21, 8,118.36 and 1,516.56

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Solution

The fourth proportional to 5,412.21, 8,118.36 and 1,516.56 is: 2,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.21 : 8,118.36 = 1,516.56 : x
  2. Step 2: Convert to fraction form
    5,412.21/8,118.36 = 1,516.56/x
  3. Step 3: Cross multiply
    5,412.21x = 8,118.36 × 1,516.56
  4. Step 4: Simplify right side
    5,412.21x = 12,311,980.04
  5. Step 5: Solve for x
    x = 12,311,980.04/5,412.21
  6. Step 6: Final answer
    x = 2,274.85

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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.