Home / 5,438.50-8,159.10-2,516.20

Finding the Fourth Proportional to 5,438.50, 8,159.10 and 2,516.20

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Solution

The fourth proportional to 5,438.50, 8,159.10 and 2,516.20 is: 3,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.50 : 8,159.10 = 2,516.20 : x
  2. Step 2: Convert to fraction form
    5,438.50/8,159.10 = 2,516.20/x
  3. Step 3: Cross multiply
    5,438.50x = 8,159.10 × 2,516.20
  4. Step 4: Simplify right side
    5,438.50x = 20,529,927.42
  5. Step 5: Solve for x
    x = 20,529,927.42/5,438.50
  6. Step 6: Final answer
    x = 3,774.92

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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.