Home / 1,995.36-2,752.35-1,427.15

Finding the Fourth Proportional to 1,995.36, 2,752.35 and 1,427.15

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Solution

The fourth proportional to 1,995.36, 2,752.35 and 1,427.15 is: 1,968.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.36 : 2,752.35 = 1,427.15 : x
  2. Step 2: Convert to fraction form
    1,995.36/2,752.35 = 1,427.15/x
  3. Step 3: Cross multiply
    1,995.36x = 2,752.35 × 1,427.15
  4. Step 4: Simplify right side
    1,995.36x = 3,928,002.54
  5. Step 5: Solve for x
    x = 3,928,002.54/1,995.36
  6. Step 6: Final answer
    x = 1,968.57

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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.