Home / 3,215.63-4,438.38-1,819.19

Finding the Fourth Proportional to 3,215.63, 4,438.38 and 1,819.19

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Solution

The fourth proportional to 3,215.63, 4,438.38 and 1,819.19 is: 2,510.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.63 : 4,438.38 = 1,819.19 : x
  2. Step 2: Convert to fraction form
    3,215.63/4,438.38 = 1,819.19/x
  3. Step 3: Cross multiply
    3,215.63x = 4,438.38 × 1,819.19
  4. Step 4: Simplify right side
    3,215.63x = 8,074,256.51
  5. Step 5: Solve for x
    x = 8,074,256.51/3,215.63
  6. Step 6: Final answer
    x = 2,510.94

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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.