Home / 2,511.80-3,466.37-1,392.74

Finding the Fourth Proportional to 2,511.80, 3,466.37 and 1,392.74

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Solution

The fourth proportional to 2,511.80, 3,466.37 and 1,392.74 is: 1,922.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.80 : 3,466.37 = 1,392.74 : x
  2. Step 2: Convert to fraction form
    2,511.80/3,466.37 = 1,392.74/x
  3. Step 3: Cross multiply
    2,511.80x = 3,466.37 × 1,392.74
  4. Step 4: Simplify right side
    2,511.80x = 4,827,738.30
  5. Step 5: Solve for x
    x = 4,827,738.30/2,511.80
  6. Step 6: Final answer
    x = 1,922.03

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1.5x scale

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.