Home / 2,762.97-4,140.36-2,143.63

Finding the Fourth Proportional to 2,762.97, 4,140.36 and 2,143.63

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Solution

The fourth proportional to 2,762.97, 4,140.36 and 2,143.63 is: 3,212.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.97 : 4,140.36 = 2,143.63 : x
  2. Step 2: Convert to fraction form
    2,762.97/4,140.36 = 2,143.63/x
  3. Step 3: Cross multiply
    2,762.97x = 4,140.36 × 2,143.63
  4. Step 4: Simplify right side
    2,762.97x = 8,875,368.49
  5. Step 5: Solve for x
    x = 8,875,368.49/2,762.97
  6. Step 6: Final answer
    x = 3,212.26

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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.