Home / 3,779.48-5,661.84-2,131.04

Finding the Fourth Proportional to 3,779.48, 5,661.84 and 2,131.04

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Solution

The fourth proportional to 3,779.48, 5,661.84 and 2,131.04 is: 3,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.48 : 5,661.84 = 2,131.04 : x
  2. Step 2: Convert to fraction form
    3,779.48/5,661.84 = 2,131.04/x
  3. Step 3: Cross multiply
    3,779.48x = 5,661.84 × 2,131.04
  4. Step 4: Simplify right side
    3,779.48x = 12,065,607.51
  5. Step 5: Solve for x
    x = 12,065,607.51/3,779.48
  6. Step 6: Final answer
    x = 3,192.40

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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.