Home / 5,350.98-7,384.65-3,112.90

Finding the Fourth Proportional to 5,350.98, 7,384.65 and 3,112.90

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Solution

The fourth proportional to 5,350.98, 7,384.65 and 3,112.90 is: 4,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,350.98 : 7,384.65 = 3,112.90 : x
  2. Step 2: Convert to fraction form
    5,350.98/7,384.65 = 3,112.90/x
  3. Step 3: Cross multiply
    5,350.98x = 7,384.65 × 3,112.90
  4. Step 4: Simplify right side
    5,350.98x = 22,987,676.99
  5. Step 5: Solve for x
    x = 22,987,676.99/5,350.98
  6. Step 6: Final answer
    x = 4,295.98

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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.