Home / 6,120.99-9,175.17-2,421.72

Finding the Fourth Proportional to 6,120.99, 9,175.17 and 2,421.72

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Solution

The fourth proportional to 6,120.99, 9,175.17 and 2,421.72 is: 3,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.99 : 9,175.17 = 2,421.72 : x
  2. Step 2: Convert to fraction form
    6,120.99/9,175.17 = 2,421.72/x
  3. Step 3: Cross multiply
    6,120.99x = 9,175.17 × 2,421.72
  4. Step 4: Simplify right side
    6,120.99x = 22,219,692.69
  5. Step 5: Solve for x
    x = 22,219,692.69/6,120.99
  6. Step 6: Final answer
    x = 3,630.08

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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.