Home / 5,882.80-8,118.69-3,889.90

Finding the Fourth Proportional to 5,882.80, 8,118.69 and 3,889.90

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Solution

The fourth proportional to 5,882.80, 8,118.69 and 3,889.90 is: 5,368.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,882.80 : 8,118.69 = 3,889.90 : x
  2. Step 2: Convert to fraction form
    5,882.80/8,118.69 = 3,889.90/x
  3. Step 3: Cross multiply
    5,882.80x = 8,118.69 × 3,889.90
  4. Step 4: Simplify right side
    5,882.80x = 31,580,892.23
  5. Step 5: Solve for x
    x = 31,580,892.23/5,882.80
  6. Step 6: Final answer
    x = 5,368.34

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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.