Home / 4,317.75-6,478.83-1,851.90

Finding the Fourth Proportional to 4,317.75, 6,478.83 and 1,851.90

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Solution

The fourth proportional to 4,317.75, 6,478.83 and 1,851.90 is: 2,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,317.75 : 6,478.83 = 1,851.90 : x
  2. Step 2: Convert to fraction form
    4,317.75/6,478.83 = 1,851.90/x
  3. Step 3: Cross multiply
    4,317.75x = 6,478.83 × 1,851.90
  4. Step 4: Simplify right side
    4,317.75x = 11,998,145.28
  5. Step 5: Solve for x
    x = 11,998,145.28/4,317.75
  6. Step 6: Final answer
    x = 2,778.80

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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.