Home / 3,290.54-4,938.17-1,315.04

Finding the Fourth Proportional to 3,290.54, 4,938.17 and 1,315.04

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Solution

The fourth proportional to 3,290.54, 4,938.17 and 1,315.04 is: 1,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.54 : 4,938.17 = 1,315.04 : x
  2. Step 2: Convert to fraction form
    3,290.54/4,938.17 = 1,315.04/x
  3. Step 3: Cross multiply
    3,290.54x = 4,938.17 × 1,315.04
  4. Step 4: Simplify right side
    3,290.54x = 6,493,859.81
  5. Step 5: Solve for x
    x = 6,493,859.81/3,290.54
  6. Step 6: Final answer
    x = 1,973.49

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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.