Home / 5,421.70-8,127.01-3,076.75

Finding the Fourth Proportional to 5,421.70, 8,127.01 and 3,076.75

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Solution

The fourth proportional to 5,421.70, 8,127.01 and 3,076.75 is: 4,611.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.70 : 8,127.01 = 3,076.75 : x
  2. Step 2: Convert to fraction form
    5,421.70/8,127.01 = 3,076.75/x
  3. Step 3: Cross multiply
    5,421.70x = 8,127.01 × 3,076.75
  4. Step 4: Simplify right side
    5,421.70x = 25,004,762.63
  5. Step 5: Solve for x
    x = 25,004,762.63/5,421.70
  6. Step 6: Final answer
    x = 4,611.98

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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.