Home / 5,158.26-7,118.30-2,800.34

Finding the Fourth Proportional to 5,158.26, 7,118.30 and 2,800.34

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Solution

The fourth proportional to 5,158.26, 7,118.30 and 2,800.34 is: 3,864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.26 : 7,118.30 = 2,800.34 : x
  2. Step 2: Convert to fraction form
    5,158.26/7,118.30 = 2,800.34/x
  3. Step 3: Cross multiply
    5,158.26x = 7,118.30 × 2,800.34
  4. Step 4: Simplify right side
    5,158.26x = 19,933,660.22
  5. Step 5: Solve for x
    x = 19,933,660.22/5,158.26
  6. Step 6: Final answer
    x = 3,864.42

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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.