Home / 2,113.19-3,171.35-1,018.27

Finding the Fourth Proportional to 2,113.19, 3,171.35 and 1,018.27

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Solution

The fourth proportional to 2,113.19, 3,171.35 and 1,018.27 is: 1,528.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.19 : 3,171.35 = 1,018.27 : x
  2. Step 2: Convert to fraction form
    2,113.19/3,171.35 = 1,018.27/x
  3. Step 3: Cross multiply
    2,113.19x = 3,171.35 × 1,018.27
  4. Step 4: Simplify right side
    2,113.19x = 3,229,297.07
  5. Step 5: Solve for x
    x = 3,229,297.07/2,113.19
  6. Step 6: Final answer
    x = 1,528.16

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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.