Home / 2,515.54-3,770.58-1,281.26

Finding the Fourth Proportional to 2,515.54, 3,770.58 and 1,281.26

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Solution

The fourth proportional to 2,515.54, 3,770.58 and 1,281.26 is: 1,920.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.54 : 3,770.58 = 1,281.26 : x
  2. Step 2: Convert to fraction form
    2,515.54/3,770.58 = 1,281.26/x
  3. Step 3: Cross multiply
    2,515.54x = 3,770.58 × 1,281.26
  4. Step 4: Simplify right side
    2,515.54x = 4,831,093.33
  5. Step 5: Solve for x
    x = 4,831,093.33/2,515.54
  6. Step 6: Final answer
    x = 1,920.50

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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.