Home / 2,118.06-3,175.19-1,077.48

Finding the Fourth Proportional to 2,118.06, 3,175.19 and 1,077.48

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Solution

The fourth proportional to 2,118.06, 3,175.19 and 1,077.48 is: 1,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.06 : 3,175.19 = 1,077.48 : x
  2. Step 2: Convert to fraction form
    2,118.06/3,175.19 = 1,077.48/x
  3. Step 3: Cross multiply
    2,118.06x = 3,175.19 × 1,077.48
  4. Step 4: Simplify right side
    2,118.06x = 3,421,203.72
  5. Step 5: Solve for x
    x = 3,421,203.72/2,118.06
  6. Step 6: Final answer
    x = 1,615.25

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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.