Home / 3,219.58-4,832.40-2,124.70

Finding the Fourth Proportional to 3,219.58, 4,832.40 and 2,124.70

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Solution

The fourth proportional to 3,219.58, 4,832.40 and 2,124.70 is: 3,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.58 : 4,832.40 = 2,124.70 : x
  2. Step 2: Convert to fraction form
    3,219.58/4,832.40 = 2,124.70/x
  3. Step 3: Cross multiply
    3,219.58x = 4,832.40 × 2,124.70
  4. Step 4: Simplify right side
    3,219.58x = 10,267,400.28
  5. Step 5: Solve for x
    x = 10,267,400.28/3,219.58
  6. Step 6: Final answer
    x = 3,189.05

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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.