Home / 5,640.09-8,457.72-2,827.05

Finding the Fourth Proportional to 5,640.09, 8,457.72 and 2,827.05

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Solution

The fourth proportional to 5,640.09, 8,457.72 and 2,827.05 is: 4,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.09 : 8,457.72 = 2,827.05 : x
  2. Step 2: Convert to fraction form
    5,640.09/8,457.72 = 2,827.05/x
  3. Step 3: Cross multiply
    5,640.09x = 8,457.72 × 2,827.05
  4. Step 4: Simplify right side
    5,640.09x = 23,910,397.33
  5. Step 5: Solve for x
    x = 23,910,397.33/5,640.09
  6. Step 6: Final answer
    x = 4,239.36

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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.