Home / 2,946.35-4,065.93-1,620.05

Finding the Fourth Proportional to 2,946.35, 4,065.93 and 1,620.05

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Solution

The fourth proportional to 2,946.35, 4,065.93 and 1,620.05 is: 2,235.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.35 : 4,065.93 = 1,620.05 : x
  2. Step 2: Convert to fraction form
    2,946.35/4,065.93 = 1,620.05/x
  3. Step 3: Cross multiply
    2,946.35x = 4,065.93 × 1,620.05
  4. Step 4: Simplify right side
    2,946.35x = 6,586,989.57
  5. Step 5: Solve for x
    x = 6,586,989.57/2,946.35
  6. Step 6: Final answer
    x = 2,235.64

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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.