Home / 2,328.35-3,212.96-1,384.09

Finding the Fourth Proportional to 2,328.35, 3,212.96 and 1,384.09

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Solution

The fourth proportional to 2,328.35, 3,212.96 and 1,384.09 is: 1,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.35 : 3,212.96 = 1,384.09 : x
  2. Step 2: Convert to fraction form
    2,328.35/3,212.96 = 1,384.09/x
  3. Step 3: Cross multiply
    2,328.35x = 3,212.96 × 1,384.09
  4. Step 4: Simplify right side
    2,328.35x = 4,447,010.85
  5. Step 5: Solve for x
    x = 4,447,010.85/2,328.35
  6. Step 6: Final answer
    x = 1,909.94

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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.