Home / 4,279.44-6,416.40-1,316.88

Finding the Fourth Proportional to 4,279.44, 6,416.40 and 1,316.88

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Solution

The fourth proportional to 4,279.44, 6,416.40 and 1,316.88 is: 1,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.44 : 6,416.40 = 1,316.88 : x
  2. Step 2: Convert to fraction form
    4,279.44/6,416.40 = 1,316.88/x
  3. Step 3: Cross multiply
    4,279.44x = 6,416.40 × 1,316.88
  4. Step 4: Simplify right side
    4,279.44x = 8,449,628.83
  5. Step 5: Solve for x
    x = 8,449,628.83/4,279.44
  6. Step 6: Final answer
    x = 1,974.47

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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.