Home / 5,382.06-8,073.90-1,918.50

Finding the Fourth Proportional to 5,382.06, 8,073.90 and 1,918.50

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Solution

The fourth proportional to 5,382.06, 8,073.90 and 1,918.50 is: 2,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.06 : 8,073.90 = 1,918.50 : x
  2. Step 2: Convert to fraction form
    5,382.06/8,073.90 = 1,918.50/x
  3. Step 3: Cross multiply
    5,382.06x = 8,073.90 × 1,918.50
  4. Step 4: Simplify right side
    5,382.06x = 15,489,777.15
  5. Step 5: Solve for x
    x = 15,489,777.15/5,382.06
  6. Step 6: Final answer
    x = 2,878.04

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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.