Home / 2,938.29-4,055.31-1,759.74

Finding the Fourth Proportional to 2,938.29, 4,055.31 and 1,759.74

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Solution

The fourth proportional to 2,938.29, 4,055.31 and 1,759.74 is: 2,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.29 : 4,055.31 = 1,759.74 : x
  2. Step 2: Convert to fraction form
    2,938.29/4,055.31 = 1,759.74/x
  3. Step 3: Cross multiply
    2,938.29x = 4,055.31 × 1,759.74
  4. Step 4: Simplify right side
    2,938.29x = 7,136,291.22
  5. Step 5: Solve for x
    x = 7,136,291.22/2,938.29
  6. Step 6: Final answer
    x = 2,428.72

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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.