Home / 3,315.80-4,973.74-1,342.37

Finding the Fourth Proportional to 3,315.80, 4,973.74 and 1,342.37

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Solution

The fourth proportional to 3,315.80, 4,973.74 and 1,342.37 is: 2,013.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.80 : 4,973.74 = 1,342.37 : x
  2. Step 2: Convert to fraction form
    3,315.80/4,973.74 = 1,342.37/x
  3. Step 3: Cross multiply
    3,315.80x = 4,973.74 × 1,342.37
  4. Step 4: Simplify right side
    3,315.80x = 6,676,599.36
  5. Step 5: Solve for x
    x = 6,676,599.36/3,315.80
  6. Step 6: Final answer
    x = 2,013.57

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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.