Home / 2,621.49-3,614.69-1,912.08

Finding the Fourth Proportional to 2,621.49, 3,614.69 and 1,912.08

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Solution

The fourth proportional to 2,621.49, 3,614.69 and 1,912.08 is: 2,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.49 : 3,614.69 = 1,912.08 : x
  2. Step 2: Convert to fraction form
    2,621.49/3,614.69 = 1,912.08/x
  3. Step 3: Cross multiply
    2,621.49x = 3,614.69 × 1,912.08
  4. Step 4: Simplify right side
    2,621.49x = 6,911,566.89
  5. Step 5: Solve for x
    x = 6,911,566.89/2,621.49
  6. Step 6: Final answer
    x = 2,636.50

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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.