Home / 3,119.58-4,683.15-1,455.30

Finding the Fourth Proportional to 3,119.58, 4,683.15 and 1,455.30

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Solution

The fourth proportional to 3,119.58, 4,683.15 and 1,455.30 is: 2,184.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.58 : 4,683.15 = 1,455.30 : x
  2. Step 2: Convert to fraction form
    3,119.58/4,683.15 = 1,455.30/x
  3. Step 3: Cross multiply
    3,119.58x = 4,683.15 × 1,455.30
  4. Step 4: Simplify right side
    3,119.58x = 6,815,388.20
  5. Step 5: Solve for x
    x = 6,815,388.20/3,119.58
  6. Step 6: Final answer
    x = 2,184.71

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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.