Home / 6,853.20-10,279.80-4,261.20

Finding the Fourth Proportional to 6,853.20, 10,279.80 and 4,261.20

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Solution

The fourth proportional to 6,853.20, 10,279.80 and 4,261.20 is: 6,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,853.20 : 10,279.80 = 4,261.20 : x
  2. Step 2: Convert to fraction form
    6,853.20/10,279.80 = 4,261.20/x
  3. Step 3: Cross multiply
    6,853.20x = 10,279.80 × 4,261.20
  4. Step 4: Simplify right side
    6,853.20x = 43,804,283.76
  5. Step 5: Solve for x
    x = 43,804,283.76/6,853.20
  6. Step 6: Final answer
    x = 6,391.80

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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.