Home / 4,200.30-6,288.30-4,078.80

Finding the Fourth Proportional to 4,200.30, 6,288.30 and 4,078.80

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Solution

The fourth proportional to 4,200.30, 6,288.30 and 4,078.80 is: 6,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.30 : 6,288.30 = 4,078.80 : x
  2. Step 2: Convert to fraction form
    4,200.30/6,288.30 = 4,078.80/x
  3. Step 3: Cross multiply
    4,200.30x = 6,288.30 × 4,078.80
  4. Step 4: Simplify right side
    4,200.30x = 25,648,718.04
  5. Step 5: Solve for x
    x = 25,648,718.04/4,200.30
  6. Step 6: Final answer
    x = 6,106.40

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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.