Home / 2,820.81-4,231.19-1,088.22

Finding the Fourth Proportional to 2,820.81, 4,231.19 and 1,088.22

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Solution

The fourth proportional to 2,820.81, 4,231.19 and 1,088.22 is: 1,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.81 : 4,231.19 = 1,088.22 : x
  2. Step 2: Convert to fraction form
    2,820.81/4,231.19 = 1,088.22/x
  3. Step 3: Cross multiply
    2,820.81x = 4,231.19 × 1,088.22
  4. Step 4: Simplify right side
    2,820.81x = 4,604,460.14
  5. Step 5: Solve for x
    x = 4,604,460.14/2,820.81
  6. Step 6: Final answer
    x = 1,632.32

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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.