Home / 2,779.31-4,168.96-1,114.18

Finding the Fourth Proportional to 2,779.31, 4,168.96 and 1,114.18

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Solution

The fourth proportional to 2,779.31, 4,168.96 and 1,114.18 is: 1,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.31 : 4,168.96 = 1,114.18 : x
  2. Step 2: Convert to fraction form
    2,779.31/4,168.96 = 1,114.18/x
  3. Step 3: Cross multiply
    2,779.31x = 4,168.96 × 1,114.18
  4. Step 4: Simplify right side
    2,779.31x = 4,644,979.49
  5. Step 5: Solve for x
    x = 4,644,979.49/2,779.31
  6. Step 6: Final answer
    x = 1,671.27

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1.5x scale

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.