Home / 2,836.85-4,254.98-1,918.31

Finding the Fourth Proportional to 2,836.85, 4,254.98 and 1,918.31

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Solution

The fourth proportional to 2,836.85, 4,254.98 and 1,918.31 is: 2,877.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.85 : 4,254.98 = 1,918.31 : x
  2. Step 2: Convert to fraction form
    2,836.85/4,254.98 = 1,918.31/x
  3. Step 3: Cross multiply
    2,836.85x = 4,254.98 × 1,918.31
  4. Step 4: Simplify right side
    2,836.85x = 8,162,339.82
  5. Step 5: Solve for x
    x = 8,162,339.82/2,836.85
  6. Step 6: Final answer
    x = 2,877.26

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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.