Home / 2,980.26-4,112.95-1,654.11

Finding the Fourth Proportional to 2,980.26, 4,112.95 and 1,654.11

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Solution

The fourth proportional to 2,980.26, 4,112.95 and 1,654.11 is: 2,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.26 : 4,112.95 = 1,654.11 : x
  2. Step 2: Convert to fraction form
    2,980.26/4,112.95 = 1,654.11/x
  3. Step 3: Cross multiply
    2,980.26x = 4,112.95 × 1,654.11
  4. Step 4: Simplify right side
    2,980.26x = 6,803,271.72
  5. Step 5: Solve for x
    x = 6,803,271.72/2,980.26
  6. Step 6: Final answer
    x = 2,282.78

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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.