Home / 5,220.20-7,801.64-3,817.58

Finding the Fourth Proportional to 5,220.20, 7,801.64 and 3,817.58

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Solution

The fourth proportional to 5,220.20, 7,801.64 and 3,817.58 is: 5,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.20 : 7,801.64 = 3,817.58 : x
  2. Step 2: Convert to fraction form
    5,220.20/7,801.64 = 3,817.58/x
  3. Step 3: Cross multiply
    5,220.20x = 7,801.64 × 3,817.58
  4. Step 4: Simplify right side
    5,220.20x = 29,783,336.28
  5. Step 5: Solve for x
    x = 29,783,336.28/5,220.20
  6. Step 6: Final answer
    x = 5,705.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.