Home / 5,677.72-8,518.63-2,905.70

Finding the Fourth Proportional to 5,677.72, 8,518.63 and 2,905.70

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Solution

The fourth proportional to 5,677.72, 8,518.63 and 2,905.70 is: 4,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.72 : 8,518.63 = 2,905.70 : x
  2. Step 2: Convert to fraction form
    5,677.72/8,518.63 = 2,905.70/x
  3. Step 3: Cross multiply
    5,677.72x = 8,518.63 × 2,905.70
  4. Step 4: Simplify right side
    5,677.72x = 24,752,583.19
  5. Step 5: Solve for x
    x = 24,752,583.19/5,677.72
  6. Step 6: Final answer
    x = 4,359.60

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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.