Home / 2,938.84-4,407.45-1,531.75

Finding the Fourth Proportional to 2,938.84, 4,407.45 and 1,531.75

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Solution

The fourth proportional to 2,938.84, 4,407.45 and 1,531.75 is: 2,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.84 : 4,407.45 = 1,531.75 : x
  2. Step 2: Convert to fraction form
    2,938.84/4,407.45 = 1,531.75/x
  3. Step 3: Cross multiply
    2,938.84x = 4,407.45 × 1,531.75
  4. Step 4: Simplify right side
    2,938.84x = 6,751,111.54
  5. Step 5: Solve for x
    x = 6,751,111.54/2,938.84
  6. Step 6: Final answer
    x = 2,297.20

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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.