Home / 1,946.31-2,685.84-1,106.95

Finding the Fourth Proportional to 1,946.31, 2,685.84 and 1,106.95

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Solution

The fourth proportional to 1,946.31, 2,685.84 and 1,106.95 is: 1,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.31 : 2,685.84 = 1,106.95 : x
  2. Step 2: Convert to fraction form
    1,946.31/2,685.84 = 1,106.95/x
  3. Step 3: Cross multiply
    1,946.31x = 2,685.84 × 1,106.95
  4. Step 4: Simplify right side
    1,946.31x = 2,973,090.59
  5. Step 5: Solve for x
    x = 2,973,090.59/1,946.31
  6. Step 6: Final answer
    x = 1,527.55

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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.