Home / 3,010.89-4,155.09-1,815.87

Finding the Fourth Proportional to 3,010.89, 4,155.09 and 1,815.87

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Solution

The fourth proportional to 3,010.89, 4,155.09 and 1,815.87 is: 2,505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.89 : 4,155.09 = 1,815.87 : x
  2. Step 2: Convert to fraction form
    3,010.89/4,155.09 = 1,815.87/x
  3. Step 3: Cross multiply
    3,010.89x = 4,155.09 × 1,815.87
  4. Step 4: Simplify right side
    3,010.89x = 7,545,103.28
  5. Step 5: Solve for x
    x = 7,545,103.28/3,010.89
  6. Step 6: Final answer
    x = 2,505.94

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Double scale
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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.