Home / 1,396.04-2,104.38-1,316.45

Finding the Fourth Proportional to 1,396.04, 2,104.38 and 1,316.45

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Solution

The fourth proportional to 1,396.04, 2,104.38 and 1,316.45 is: 1,984.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.04 : 2,104.38 = 1,316.45 : x
  2. Step 2: Convert to fraction form
    1,396.04/2,104.38 = 1,316.45/x
  3. Step 3: Cross multiply
    1,396.04x = 2,104.38 × 1,316.45
  4. Step 4: Simplify right side
    1,396.04x = 2,770,316.31
  5. Step 5: Solve for x
    x = 2,770,316.31/1,396.04
  6. Step 6: Final answer
    x = 1,984.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.