Home / 3,122.78-4,683.20-1,477.66

Finding the Fourth Proportional to 3,122.78, 4,683.20 and 1,477.66

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Solution

The fourth proportional to 3,122.78, 4,683.20 and 1,477.66 is: 2,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.78 : 4,683.20 = 1,477.66 : x
  2. Step 2: Convert to fraction form
    3,122.78/4,683.20 = 1,477.66/x
  3. Step 3: Cross multiply
    3,122.78x = 4,683.20 × 1,477.66
  4. Step 4: Simplify right side
    3,122.78x = 6,920,177.31
  5. Step 5: Solve for x
    x = 6,920,177.31/3,122.78
  6. Step 6: Final answer
    x = 2,216.03

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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.