Home / 3,421.21-5,127.63-3,011.08

Finding the Fourth Proportional to 3,421.21, 5,127.63 and 3,011.08

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Solution

The fourth proportional to 3,421.21, 5,127.63 and 3,011.08 is: 4,512.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.21 : 5,127.63 = 3,011.08 : x
  2. Step 2: Convert to fraction form
    3,421.21/5,127.63 = 3,011.08/x
  3. Step 3: Cross multiply
    3,421.21x = 5,127.63 × 3,011.08
  4. Step 4: Simplify right side
    3,421.21x = 15,439,704.14
  5. Step 5: Solve for x
    x = 15,439,704.14/3,421.21
  6. Step 6: Final answer
    x = 4,512.94

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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.