Home / 4,185.78-6,279.03-1,263.84

Finding the Fourth Proportional to 4,185.78, 6,279.03 and 1,263.84

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Solution

The fourth proportional to 4,185.78, 6,279.03 and 1,263.84 is: 1,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.78 : 6,279.03 = 1,263.84 : x
  2. Step 2: Convert to fraction form
    4,185.78/6,279.03 = 1,263.84/x
  3. Step 3: Cross multiply
    4,185.78x = 6,279.03 × 1,263.84
  4. Step 4: Simplify right side
    4,185.78x = 7,935,689.28
  5. Step 5: Solve for x
    x = 7,935,689.28/4,185.78
  6. Step 6: Final answer
    x = 1,895.87

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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.