Home / 5,030.78-7,546.84-2,108.40

Finding the Fourth Proportional to 5,030.78, 7,546.84 and 2,108.40

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Solution

The fourth proportional to 5,030.78, 7,546.84 and 2,108.40 is: 3,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,030.78 : 7,546.84 = 2,108.40 : x
  2. Step 2: Convert to fraction form
    5,030.78/7,546.84 = 2,108.40/x
  3. Step 3: Cross multiply
    5,030.78x = 7,546.84 × 2,108.40
  4. Step 4: Simplify right side
    5,030.78x = 15,911,723.88
  5. Step 5: Solve for x
    x = 15,911,723.88/5,030.78
  6. Step 6: Final answer
    x = 3,162.88

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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.