Home / 2,762.41-4,138.35-2,143.06

Finding the Fourth Proportional to 2,762.41, 4,138.35 and 2,143.06

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Solution

The fourth proportional to 2,762.41, 4,138.35 and 2,143.06 is: 3,210.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.41 : 4,138.35 = 2,143.06 : x
  2. Step 2: Convert to fraction form
    2,762.41/4,138.35 = 2,143.06/x
  3. Step 3: Cross multiply
    2,762.41x = 4,138.35 × 2,143.06
  4. Step 4: Simplify right side
    2,762.41x = 8,868,732.35
  5. Step 5: Solve for x
    x = 8,868,732.35/2,762.41
  6. Step 6: Final answer
    x = 3,210.51

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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.