Home / 3,650.86-5,040.60-2,810.08

Finding the Fourth Proportional to 3,650.86, 5,040.60 and 2,810.08

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Solution

The fourth proportional to 3,650.86, 5,040.60 and 2,810.08 is: 3,879.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.86 : 5,040.60 = 2,810.08 : x
  2. Step 2: Convert to fraction form
    3,650.86/5,040.60 = 2,810.08/x
  3. Step 3: Cross multiply
    3,650.86x = 5,040.60 × 2,810.08
  4. Step 4: Simplify right side
    3,650.86x = 14,164,476.65
  5. Step 5: Solve for x
    x = 14,164,476.65/3,650.86
  6. Step 6: Final answer
    x = 3,879.77

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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.