Home / 2,215.05-3,323.26-1,392.18

Finding the Fourth Proportional to 2,215.05, 3,323.26 and 1,392.18

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Solution

The fourth proportional to 2,215.05, 3,323.26 and 1,392.18 is: 2,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.05 : 3,323.26 = 1,392.18 : x
  2. Step 2: Convert to fraction form
    2,215.05/3,323.26 = 1,392.18/x
  3. Step 3: Cross multiply
    2,215.05x = 3,323.26 × 1,392.18
  4. Step 4: Simplify right side
    2,215.05x = 4,626,576.11
  5. Step 5: Solve for x
    x = 4,626,576.11/2,215.05
  6. Step 6: Final answer
    x = 2,088.70

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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.