Home / 3,015.96-4,158.87-2,385.48

Finding the Fourth Proportional to 3,015.96, 4,158.87 and 2,385.48

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Solution

The fourth proportional to 3,015.96, 4,158.87 and 2,385.48 is: 3,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.96 : 4,158.87 = 2,385.48 : x
  2. Step 2: Convert to fraction form
    3,015.96/4,158.87 = 2,385.48/x
  3. Step 3: Cross multiply
    3,015.96x = 4,158.87 × 2,385.48
  4. Step 4: Simplify right side
    3,015.96x = 9,920,879.48
  5. Step 5: Solve for x
    x = 9,920,879.48/3,015.96
  6. Step 6: Final answer
    x = 3,289.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.