Home / 3,219.12-4,442.37-1,803.05

Finding the Fourth Proportional to 3,219.12, 4,442.37 and 1,803.05

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Solution

The fourth proportional to 3,219.12, 4,442.37 and 1,803.05 is: 2,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.12 : 4,442.37 = 1,803.05 : x
  2. Step 2: Convert to fraction form
    3,219.12/4,442.37 = 1,803.05/x
  3. Step 3: Cross multiply
    3,219.12x = 4,442.37 × 1,803.05
  4. Step 4: Simplify right side
    3,219.12x = 8,009,793.02
  5. Step 5: Solve for x
    x = 8,009,793.02/3,219.12
  6. Step 6: Final answer
    x = 2,488.19

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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.