Home / 2,979.10-4,111.46-1,652.80

Finding the Fourth Proportional to 2,979.10, 4,111.46 and 1,652.80

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Solution

The fourth proportional to 2,979.10, 4,111.46 and 1,652.80 is: 2,281.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.10 : 4,111.46 = 1,652.80 : x
  2. Step 2: Convert to fraction form
    2,979.10/4,111.46 = 1,652.80/x
  3. Step 3: Cross multiply
    2,979.10x = 4,111.46 × 1,652.80
  4. Step 4: Simplify right side
    2,979.10x = 6,795,421.09
  5. Step 5: Solve for x
    x = 6,795,421.09/2,979.10
  6. Step 6: Final answer
    x = 2,281.03

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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.