Home / 6,853.12-10,280.06-2,172.80

Finding the Fourth Proportional to 6,853.12, 10,280.06 and 2,172.80

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Solution

The fourth proportional to 6,853.12, 10,280.06 and 2,172.80 is: 3,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,853.12 : 10,280.06 = 2,172.80 : x
  2. Step 2: Convert to fraction form
    6,853.12/10,280.06 = 2,172.80/x
  3. Step 3: Cross multiply
    6,853.12x = 10,280.06 × 2,172.80
  4. Step 4: Simplify right side
    6,853.12x = 22,336,488.67
  5. Step 5: Solve for x
    x = 22,336,488.67/6,853.12
  6. Step 6: Final answer
    x = 3,259.32

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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.