Home / 2,017.44-2,786.40-1,555.20

Finding the Fourth Proportional to 2,017.44, 2,786.40 and 1,555.20

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Solution

The fourth proportional to 2,017.44, 2,786.40 and 1,555.20 is: 2,147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.44 : 2,786.40 = 1,555.20 : x
  2. Step 2: Convert to fraction form
    2,017.44/2,786.40 = 1,555.20/x
  3. Step 3: Cross multiply
    2,017.44x = 2,786.40 × 1,555.20
  4. Step 4: Simplify right side
    2,017.44x = 4,333,409.28
  5. Step 5: Solve for x
    x = 4,333,409.28/2,017.44
  6. Step 6: Final answer
    x = 2,147.97

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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.