Home / 2,979.19-4,111.18-1,800.06

Finding the Fourth Proportional to 2,979.19, 4,111.18 and 1,800.06

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Solution

The fourth proportional to 2,979.19, 4,111.18 and 1,800.06 is: 2,484.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.19 : 4,111.18 = 1,800.06 : x
  2. Step 2: Convert to fraction form
    2,979.19/4,111.18 = 1,800.06/x
  3. Step 3: Cross multiply
    2,979.19x = 4,111.18 × 1,800.06
  4. Step 4: Simplify right side
    2,979.19x = 7,400,370.67
  5. Step 5: Solve for x
    x = 7,400,370.67/2,979.19
  6. Step 6: Final answer
    x = 2,484.02

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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.