Home / 2,955.36-4,431.42-1,394.40

Finding the Fourth Proportional to 2,955.36, 4,431.42 and 1,394.40

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Solution

The fourth proportional to 2,955.36, 4,431.42 and 1,394.40 is: 2,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.36 : 4,431.42 = 1,394.40 : x
  2. Step 2: Convert to fraction form
    2,955.36/4,431.42 = 1,394.40/x
  3. Step 3: Cross multiply
    2,955.36x = 4,431.42 × 1,394.40
  4. Step 4: Simplify right side
    2,955.36x = 6,179,172.05
  5. Step 5: Solve for x
    x = 6,179,172.05/2,955.36
  6. Step 6: Final answer
    x = 2,090.84

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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.