Home / 2,946.98-4,066.81-1,620.74

Finding the Fourth Proportional to 2,946.98, 4,066.81 and 1,620.74

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Solution

The fourth proportional to 2,946.98, 4,066.81 and 1,620.74 is: 2,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.98 : 4,066.81 = 1,620.74 : x
  2. Step 2: Convert to fraction form
    2,946.98/4,066.81 = 1,620.74/x
  3. Step 3: Cross multiply
    2,946.98x = 4,066.81 × 1,620.74
  4. Step 4: Simplify right side
    2,946.98x = 6,591,247.75
  5. Step 5: Solve for x
    x = 6,591,247.75/2,946.98
  6. Step 6: Final answer
    x = 2,236.61

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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.