Home / 5,205.47-7,188.80-3,317.95

Finding the Fourth Proportional to 5,205.47, 7,188.80 and 3,317.95

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Solution

The fourth proportional to 5,205.47, 7,188.80 and 3,317.95 is: 4,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.47 : 7,188.80 = 3,317.95 : x
  2. Step 2: Convert to fraction form
    5,205.47/7,188.80 = 3,317.95/x
  3. Step 3: Cross multiply
    5,205.47x = 7,188.80 × 3,317.95
  4. Step 4: Simplify right side
    5,205.47x = 23,852,049.58
  5. Step 5: Solve for x
    x = 23,852,049.58/5,205.47
  6. Step 6: Final answer
    x = 4,582.11

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1.5x scale

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.