Home / 2,173.08-2,998.67-1,228.82

Finding the Fourth Proportional to 2,173.08, 2,998.67 and 1,228.82

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Solution

The fourth proportional to 2,173.08, 2,998.67 and 1,228.82 is: 1,695.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.08 : 2,998.67 = 1,228.82 : x
  2. Step 2: Convert to fraction form
    2,173.08/2,998.67 = 1,228.82/x
  3. Step 3: Cross multiply
    2,173.08x = 2,998.67 × 1,228.82
  4. Step 4: Simplify right side
    2,173.08x = 3,684,827.02
  5. Step 5: Solve for x
    x = 3,684,827.02/2,173.08
  6. Step 6: Final answer
    x = 1,695.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.