Home / 4,262.78-6,378.95-2,946.80

Finding the Fourth Proportional to 4,262.78, 6,378.95 and 2,946.80

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Solution

The fourth proportional to 4,262.78, 6,378.95 and 2,946.80 is: 4,409.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,262.78 : 6,378.95 = 2,946.80 : x
  2. Step 2: Convert to fraction form
    4,262.78/6,378.95 = 2,946.80/x
  3. Step 3: Cross multiply
    4,262.78x = 6,378.95 × 2,946.80
  4. Step 4: Simplify right side
    4,262.78x = 18,797,465.33
  5. Step 5: Solve for x
    x = 18,797,465.33/4,262.78
  6. Step 6: Final answer
    x = 4,409.68

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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.