Home / 1,959.14-2,700.41-1,211.45

Finding the Fourth Proportional to 1,959.14, 2,700.41 and 1,211.45

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Solution

The fourth proportional to 1,959.14, 2,700.41 and 1,211.45 is: 1,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.14 : 2,700.41 = 1,211.45 : x
  2. Step 2: Convert to fraction form
    1,959.14/2,700.41 = 1,211.45/x
  3. Step 3: Cross multiply
    1,959.14x = 2,700.41 × 1,211.45
  4. Step 4: Simplify right side
    1,959.14x = 3,271,392.14
  5. Step 5: Solve for x
    x = 3,271,392.14/1,959.14
  6. Step 6: Final answer
    x = 1,669.81

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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.