Home / 2,120.54-3,177.74-1,461.74

Finding the Fourth Proportional to 2,120.54, 3,177.74 and 1,461.74

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Solution

The fourth proportional to 2,120.54, 3,177.74 and 1,461.74 is: 2,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.54 : 3,177.74 = 1,461.74 : x
  2. Step 2: Convert to fraction form
    2,120.54/3,177.74 = 1,461.74/x
  3. Step 3: Cross multiply
    2,120.54x = 3,177.74 × 1,461.74
  4. Step 4: Simplify right side
    2,120.54x = 4,645,029.67
  5. Step 5: Solve for x
    x = 4,645,029.67/2,120.54
  6. Step 6: Final answer
    x = 2,190.49

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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.