Home / 5,477.70-8,220.60-2,193.15

Finding the Fourth Proportional to 5,477.70, 8,220.60 and 2,193.15

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Solution

The fourth proportional to 5,477.70, 8,220.60 and 2,193.15 is: 3,291.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.70 : 8,220.60 = 2,193.15 : x
  2. Step 2: Convert to fraction form
    5,477.70/8,220.60 = 2,193.15/x
  3. Step 3: Cross multiply
    5,477.70x = 8,220.60 × 2,193.15
  4. Step 4: Simplify right side
    5,477.70x = 18,029,008.89
  5. Step 5: Solve for x
    x = 18,029,008.89/5,477.70
  6. Step 6: Final answer
    x = 3,291.35

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1.5x scale

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.