Home / 6,172.79-8,518.39-3,340.10

Finding the Fourth Proportional to 6,172.79, 8,518.39 and 3,340.10

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Solution

The fourth proportional to 6,172.79, 8,518.39 and 3,340.10 is: 4,609.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.79 : 8,518.39 = 3,340.10 : x
  2. Step 2: Convert to fraction form
    6,172.79/8,518.39 = 3,340.10/x
  3. Step 3: Cross multiply
    6,172.79x = 8,518.39 × 3,340.10
  4. Step 4: Simplify right side
    6,172.79x = 28,452,299.91
  5. Step 5: Solve for x
    x = 28,452,299.91/6,172.79
  6. Step 6: Final answer
    x = 4,609.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.