Home / 2,184.78-3,014.94-1,190.05

Finding the Fourth Proportional to 2,184.78, 3,014.94 and 1,190.05

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Solution

The fourth proportional to 2,184.78, 3,014.94 and 1,190.05 is: 1,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.78 : 3,014.94 = 1,190.05 : x
  2. Step 2: Convert to fraction form
    2,184.78/3,014.94 = 1,190.05/x
  3. Step 3: Cross multiply
    2,184.78x = 3,014.94 × 1,190.05
  4. Step 4: Simplify right side
    2,184.78x = 3,587,929.35
  5. Step 5: Solve for x
    x = 3,587,929.35/2,184.78
  6. Step 6: Final answer
    x = 1,642.24

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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.