Home / 6,279.40-8,686.20-5,853.88

Finding the Fourth Proportional to 6,279.40, 8,686.20 and 5,853.88

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Solution

The fourth proportional to 6,279.40, 8,686.20 and 5,853.88 is: 8,097.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.40 : 8,686.20 = 5,853.88 : x
  2. Step 2: Convert to fraction form
    6,279.40/8,686.20 = 5,853.88/x
  3. Step 3: Cross multiply
    6,279.40x = 8,686.20 × 5,853.88
  4. Step 4: Simplify right side
    6,279.40x = 50,847,972.46
  5. Step 5: Solve for x
    x = 50,847,972.46/6,279.40
  6. Step 6: Final answer
    x = 8,097.58

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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.