Home / 5,108.58-7,049.84-2,985.57

Finding the Fourth Proportional to 5,108.58, 7,049.84 and 2,985.57

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Solution

The fourth proportional to 5,108.58, 7,049.84 and 2,985.57 is: 4,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.58 : 7,049.84 = 2,985.57 : x
  2. Step 2: Convert to fraction form
    5,108.58/7,049.84 = 2,985.57/x
  3. Step 3: Cross multiply
    5,108.58x = 7,049.84 × 2,985.57
  4. Step 4: Simplify right side
    5,108.58x = 21,047,775.88
  5. Step 5: Solve for x
    x = 21,047,775.88/5,108.58
  6. Step 6: Final answer
    x = 4,120.08

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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.