Home / 2,980.78-4,468.43-1,518.22

Finding the Fourth Proportional to 2,980.78, 4,468.43 and 1,518.22

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Solution

The fourth proportional to 2,980.78, 4,468.43 and 1,518.22 is: 2,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.78 : 4,468.43 = 1,518.22 : x
  2. Step 2: Convert to fraction form
    2,980.78/4,468.43 = 1,518.22/x
  3. Step 3: Cross multiply
    2,980.78x = 4,468.43 × 1,518.22
  4. Step 4: Simplify right side
    2,980.78x = 6,784,069.18
  5. Step 5: Solve for x
    x = 6,784,069.18/2,980.78
  6. Step 6: Final answer
    x = 2,275.94

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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.