Home / 2,979.51-4,112.75-1,846.05

Finding the Fourth Proportional to 2,979.51, 4,112.75 and 1,846.05

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Solution

The fourth proportional to 2,979.51, 4,112.75 and 1,846.05 is: 2,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.51 : 4,112.75 = 1,846.05 : x
  2. Step 2: Convert to fraction form
    2,979.51/4,112.75 = 1,846.05/x
  3. Step 3: Cross multiply
    2,979.51x = 4,112.75 × 1,846.05
  4. Step 4: Simplify right side
    2,979.51x = 7,592,312.34
  5. Step 5: Solve for x
    x = 7,592,312.34/2,979.51
  6. Step 6: Final answer
    x = 2,548.18

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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.