Home / 4,123.55-6,185.32-1,815.05

Finding the Fourth Proportional to 4,123.55, 6,185.32 and 1,815.05

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Solution

The fourth proportional to 4,123.55, 6,185.32 and 1,815.05 is: 2,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.55 : 6,185.32 = 1,815.05 : x
  2. Step 2: Convert to fraction form
    4,123.55/6,185.32 = 1,815.05/x
  3. Step 3: Cross multiply
    4,123.55x = 6,185.32 × 1,815.05
  4. Step 4: Simplify right side
    4,123.55x = 11,226,651.41
  5. Step 5: Solve for x
    x = 11,226,651.41/4,123.55
  6. Step 6: Final answer
    x = 2,722.57

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Double scale
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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.