Home / 2,868.90-4,280.66-2,662.35

Finding the Fourth Proportional to 2,868.90, 4,280.66 and 2,662.35

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Solution

The fourth proportional to 2,868.90, 4,280.66 and 2,662.35 is: 3,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.90 : 4,280.66 = 2,662.35 : x
  2. Step 2: Convert to fraction form
    2,868.90/4,280.66 = 2,662.35/x
  3. Step 3: Cross multiply
    2,868.90x = 4,280.66 × 2,662.35
  4. Step 4: Simplify right side
    2,868.90x = 11,396,601.84
  5. Step 5: Solve for x
    x = 11,396,601.84/2,868.90
  6. Step 6: Final answer
    x = 3,972.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.