Home / 3,216.50-4,438.89-1,819.22

Finding the Fourth Proportional to 3,216.50, 4,438.89 and 1,819.22

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Solution

The fourth proportional to 3,216.50, 4,438.89 and 1,819.22 is: 2,510.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.50 : 4,438.89 = 1,819.22 : x
  2. Step 2: Convert to fraction form
    3,216.50/4,438.89 = 1,819.22/x
  3. Step 3: Cross multiply
    3,216.50x = 4,438.89 × 1,819.22
  4. Step 4: Simplify right side
    3,216.50x = 8,075,317.47
  5. Step 5: Solve for x
    x = 8,075,317.47/3,216.50
  6. Step 6: Final answer
    x = 2,510.59

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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.