Home / 7,315.81-10,973.71-3,422.95

Finding the Fourth Proportional to 7,315.81, 10,973.71 and 3,422.95

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Solution

The fourth proportional to 7,315.81, 10,973.71 and 3,422.95 is: 5,134.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.81 : 10,973.71 = 3,422.95 : x
  2. Step 2: Convert to fraction form
    7,315.81/10,973.71 = 3,422.95/x
  3. Step 3: Cross multiply
    7,315.81x = 10,973.71 × 3,422.95
  4. Step 4: Simplify right side
    7,315.81x = 37,562,437.49
  5. Step 5: Solve for x
    x = 37,562,437.49/7,315.81
  6. Step 6: Final answer
    x = 5,134.42

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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.