Home / 2,187.16-3,280.27-626.75

Finding the Fourth Proportional to 2,187.16, 3,280.27 and 626.75

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Solution

The fourth proportional to 2,187.16, 3,280.27 and 626.75 is: 939.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.16 : 3,280.27 = 626.75 : x
  2. Step 2: Convert to fraction form
    2,187.16/3,280.27 = 626.75/x
  3. Step 3: Cross multiply
    2,187.16x = 3,280.27 × 626.75
  4. Step 4: Simplify right side
    2,187.16x = 2,055,893.60
  5. Step 5: Solve for x
    x = 2,055,893.60/2,187.16
  6. Step 6: Final answer
    x = 939.98

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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.