Home / 6,405.54-8,838.63-3,610.50

Finding the Fourth Proportional to 6,405.54, 8,838.63 and 3,610.50

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Solution

The fourth proportional to 6,405.54, 8,838.63 and 3,610.50 is: 4,981.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.54 : 8,838.63 = 3,610.50 : x
  2. Step 2: Convert to fraction form
    6,405.54/8,838.63 = 3,610.50/x
  3. Step 3: Cross multiply
    6,405.54x = 8,838.63 × 3,610.50
  4. Step 4: Simplify right side
    6,405.54x = 31,911,873.62
  5. Step 5: Solve for x
    x = 31,911,873.62/6,405.54
  6. Step 6: Final answer
    x = 4,981.92

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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.