Home / 5,412.46-8,118.72-1,516.90

Finding the Fourth Proportional to 5,412.46, 8,118.72 and 1,516.90

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Solution

The fourth proportional to 5,412.46, 8,118.72 and 1,516.90 is: 2,275.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.46 : 8,118.72 = 1,516.90 : x
  2. Step 2: Convert to fraction form
    5,412.46/8,118.72 = 1,516.90/x
  3. Step 3: Cross multiply
    5,412.46x = 8,118.72 × 1,516.90
  4. Step 4: Simplify right side
    5,412.46x = 12,315,286.37
  5. Step 5: Solve for x
    x = 12,315,286.37/5,412.46
  6. Step 6: Final answer
    x = 2,275.36

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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.