Home / 2,938.84-4,055.58-1,759.90

Finding the Fourth Proportional to 2,938.84, 4,055.58 and 1,759.90

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Solution

The fourth proportional to 2,938.84, 4,055.58 and 1,759.90 is: 2,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.84 : 4,055.58 = 1,759.90 : x
  2. Step 2: Convert to fraction form
    2,938.84/4,055.58 = 1,759.90/x
  3. Step 3: Cross multiply
    2,938.84x = 4,055.58 × 1,759.90
  4. Step 4: Simplify right side
    2,938.84x = 7,137,415.24
  5. Step 5: Solve for x
    x = 7,137,415.24/2,938.84
  6. Step 6: Final answer
    x = 2,428.65

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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.