Home / 4,815.72-6,640.96-2,927.60

Finding the Fourth Proportional to 4,815.72, 6,640.96 and 2,927.60

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Solution

The fourth proportional to 4,815.72, 6,640.96 and 2,927.60 is: 4,037.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.72 : 6,640.96 = 2,927.60 : x
  2. Step 2: Convert to fraction form
    4,815.72/6,640.96 = 2,927.60/x
  3. Step 3: Cross multiply
    4,815.72x = 6,640.96 × 2,927.60
  4. Step 4: Simplify right side
    4,815.72x = 19,442,074.50
  5. Step 5: Solve for x
    x = 19,442,074.50/4,815.72
  6. Step 6: Final answer
    x = 4,037.21

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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.