Home / 6,172.94-8,518.44-3,521.20

Finding the Fourth Proportional to 6,172.94, 8,518.44 and 3,521.20

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Solution

The fourth proportional to 6,172.94, 8,518.44 and 3,521.20 is: 4,859.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.94 : 8,518.44 = 3,521.20 : x
  2. Step 2: Convert to fraction form
    6,172.94/8,518.44 = 3,521.20/x
  3. Step 3: Cross multiply
    6,172.94x = 8,518.44 × 3,521.20
  4. Step 4: Simplify right side
    6,172.94x = 29,995,088.34
  5. Step 5: Solve for x
    x = 29,995,088.34/6,172.94
  6. Step 6: Final answer
    x = 4,859.13

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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.