Home / 2,688.22-4,023.69-1,817.74

Finding the Fourth Proportional to 2,688.22, 4,023.69 and 1,817.74

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Solution

The fourth proportional to 2,688.22, 4,023.69 and 1,817.74 is: 2,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.22 : 4,023.69 = 1,817.74 : x
  2. Step 2: Convert to fraction form
    2,688.22/4,023.69 = 1,817.74/x
  3. Step 3: Cross multiply
    2,688.22x = 4,023.69 × 1,817.74
  4. Step 4: Simplify right side
    2,688.22x = 7,314,022.26
  5. Step 5: Solve for x
    x = 7,314,022.26/2,688.22
  6. Step 6: Final answer
    x = 2,720.77

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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.