Home / 1,941.45-2,679.27-1,102.20

Finding the Fourth Proportional to 1,941.45, 2,679.27 and 1,102.20

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Solution

The fourth proportional to 1,941.45, 2,679.27 and 1,102.20 is: 1,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.45 : 2,679.27 = 1,102.20 : x
  2. Step 2: Convert to fraction form
    1,941.45/2,679.27 = 1,102.20/x
  3. Step 3: Cross multiply
    1,941.45x = 2,679.27 × 1,102.20
  4. Step 4: Simplify right side
    1,941.45x = 2,953,091.39
  5. Step 5: Solve for x
    x = 2,953,091.39/1,941.45
  6. Step 6: Final answer
    x = 1,521.08

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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.