Home / 4,319.25-6,478.86-1,855.80

Finding the Fourth Proportional to 4,319.25, 6,478.86 and 1,855.80

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Solution

The fourth proportional to 4,319.25, 6,478.86 and 1,855.80 is: 2,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.25 : 6,478.86 = 1,855.80 : x
  2. Step 2: Convert to fraction form
    4,319.25/6,478.86 = 1,855.80/x
  3. Step 3: Cross multiply
    4,319.25x = 6,478.86 × 1,855.80
  4. Step 4: Simplify right side
    4,319.25x = 12,023,468.39
  5. Step 5: Solve for x
    x = 12,023,468.39/4,319.25
  6. Step 6: Final answer
    x = 2,783.69

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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.