Home / 3,216.85-4,439.37-1,872.35

Finding the Fourth Proportional to 3,216.85, 4,439.37 and 1,872.35

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Solution

The fourth proportional to 3,216.85, 4,439.37 and 1,872.35 is: 2,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.85 : 4,439.37 = 1,872.35 : x
  2. Step 2: Convert to fraction form
    3,216.85/4,439.37 = 1,872.35/x
  3. Step 3: Cross multiply
    3,216.85x = 4,439.37 × 1,872.35
  4. Step 4: Simplify right side
    3,216.85x = 8,312,054.42
  5. Step 5: Solve for x
    x = 8,312,054.42/3,216.85
  6. Step 6: Final answer
    x = 2,583.91

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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.