Home / 5,315.80-7,336.43-3,047.95

Finding the Fourth Proportional to 5,315.80, 7,336.43 and 3,047.95

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Solution

The fourth proportional to 5,315.80, 7,336.43 and 3,047.95 is: 4,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.80 : 7,336.43 = 3,047.95 : x
  2. Step 2: Convert to fraction form
    5,315.80/7,336.43 = 3,047.95/x
  3. Step 3: Cross multiply
    5,315.80x = 7,336.43 × 3,047.95
  4. Step 4: Simplify right side
    5,315.80x = 22,361,071.82
  5. Step 5: Solve for x
    x = 22,361,071.82/5,315.80
  6. Step 6: Final answer
    x = 4,206.53

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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.