Home / 5,623.80-8,442.10-3,316.60

Finding the Fourth Proportional to 5,623.80, 8,442.10 and 3,316.60

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Solution

The fourth proportional to 5,623.80, 8,442.10 and 3,316.60 is: 4,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.80 : 8,442.10 = 3,316.60 : x
  2. Step 2: Convert to fraction form
    5,623.80/8,442.10 = 3,316.60/x
  3. Step 3: Cross multiply
    5,623.80x = 8,442.10 × 3,316.60
  4. Step 4: Simplify right side
    5,623.80x = 27,999,068.86
  5. Step 5: Solve for x
    x = 27,999,068.86/5,623.80
  6. Step 6: Final answer
    x = 4,978.67

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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.