Home / 4,128.74-6,193.65-2,181.02

Finding the Fourth Proportional to 4,128.74, 6,193.65 and 2,181.02

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Solution

The fourth proportional to 4,128.74, 6,193.65 and 2,181.02 is: 3,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.74 : 6,193.65 = 2,181.02 : x
  2. Step 2: Convert to fraction form
    4,128.74/6,193.65 = 2,181.02/x
  3. Step 3: Cross multiply
    4,128.74x = 6,193.65 × 2,181.02
  4. Step 4: Simplify right side
    4,128.74x = 13,508,474.52
  5. Step 5: Solve for x
    x = 13,508,474.52/4,128.74
  6. Step 6: Final answer
    x = 3,271.82

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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.