Home / 2,763.81-4,137.21-2,066.40

Finding the Fourth Proportional to 2,763.81, 4,137.21 and 2,066.40

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Solution

The fourth proportional to 2,763.81, 4,137.21 and 2,066.40 is: 3,093.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.81 : 4,137.21 = 2,066.40 : x
  2. Step 2: Convert to fraction form
    2,763.81/4,137.21 = 2,066.40/x
  3. Step 3: Cross multiply
    2,763.81x = 4,137.21 × 2,066.40
  4. Step 4: Simplify right side
    2,763.81x = 8,549,130.74
  5. Step 5: Solve for x
    x = 8,549,130.74/2,763.81
  6. Step 6: Final answer
    x = 3,093.24

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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.