Home / 1,940.18-2,913.52-1,274.18

Finding the Fourth Proportional to 1,940.18, 2,913.52 and 1,274.18

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Solution

The fourth proportional to 1,940.18, 2,913.52 and 1,274.18 is: 1,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.18 : 2,913.52 = 1,274.18 : x
  2. Step 2: Convert to fraction form
    1,940.18/2,913.52 = 1,274.18/x
  3. Step 3: Cross multiply
    1,940.18x = 2,913.52 × 1,274.18
  4. Step 4: Simplify right side
    1,940.18x = 3,712,348.91
  5. Step 5: Solve for x
    x = 3,712,348.91/1,940.18
  6. Step 6: Final answer
    x = 1,913.40

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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.