Home / 1,941.63-2,913.95-1,378.73

Finding the Fourth Proportional to 1,941.63, 2,913.95 and 1,378.73

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Solution

The fourth proportional to 1,941.63, 2,913.95 and 1,378.73 is: 2,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.63 : 2,913.95 = 1,378.73 : x
  2. Step 2: Convert to fraction form
    1,941.63/2,913.95 = 1,378.73/x
  3. Step 3: Cross multiply
    1,941.63x = 2,913.95 × 1,378.73
  4. Step 4: Simplify right side
    1,941.63x = 4,017,561.02
  5. Step 5: Solve for x
    x = 4,017,561.02/1,941.63
  6. Step 6: Final answer
    x = 2,069.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.