Home / 5,827.62-8,739.38-1,878.72

Finding the Fourth Proportional to 5,827.62, 8,739.38 and 1,878.72

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Solution

The fourth proportional to 5,827.62, 8,739.38 and 1,878.72 is: 2,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,827.62 : 8,739.38 = 1,878.72 : x
  2. Step 2: Convert to fraction form
    5,827.62/8,739.38 = 1,878.72/x
  3. Step 3: Cross multiply
    5,827.62x = 8,739.38 × 1,878.72
  4. Step 4: Simplify right side
    5,827.62x = 16,418,858.51
  5. Step 5: Solve for x
    x = 16,418,858.51/5,827.62
  6. Step 6: Final answer
    x = 2,817.42

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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.