Home / 2,084.95-3,128.25-914.33

Finding the Fourth Proportional to 2,084.95, 3,128.25 and 914.33

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Solution

The fourth proportional to 2,084.95, 3,128.25 and 914.33 is: 1,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.95 : 3,128.25 = 914.33 : x
  2. Step 2: Convert to fraction form
    2,084.95/3,128.25 = 914.33/x
  3. Step 3: Cross multiply
    2,084.95x = 3,128.25 × 914.33
  4. Step 4: Simplify right side
    2,084.95x = 2,860,237.18
  5. Step 5: Solve for x
    x = 2,860,237.18/2,084.95
  6. Step 6: Final answer
    x = 1,371.85

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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.