Home / 2,379.88-3,285.48-1,541.62

Finding the Fourth Proportional to 2,379.88, 3,285.48 and 1,541.62

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Solution

The fourth proportional to 2,379.88, 3,285.48 and 1,541.62 is: 2,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.88 : 3,285.48 = 1,541.62 : x
  2. Step 2: Convert to fraction form
    2,379.88/3,285.48 = 1,541.62/x
  3. Step 3: Cross multiply
    2,379.88x = 3,285.48 × 1,541.62
  4. Step 4: Simplify right side
    2,379.88x = 5,064,961.68
  5. Step 5: Solve for x
    x = 5,064,961.68/2,379.88
  6. Step 6: Final answer
    x = 2,128.24

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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.