Home / 6,155.12-8,490.58-3,795.60

Finding the Fourth Proportional to 6,155.12, 8,490.58 and 3,795.60

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Solution

The fourth proportional to 6,155.12, 8,490.58 and 3,795.60 is: 5,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,155.12 : 8,490.58 = 3,795.60 : x
  2. Step 2: Convert to fraction form
    6,155.12/8,490.58 = 3,795.60/x
  3. Step 3: Cross multiply
    6,155.12x = 8,490.58 × 3,795.60
  4. Step 4: Simplify right side
    6,155.12x = 32,226,845.45
  5. Step 5: Solve for x
    x = 32,226,845.45/6,155.12
  6. Step 6: Final answer
    x = 5,235.78

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1.5x scale

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.