Home / 6,519.80-8,997.40-3,535.68

Finding the Fourth Proportional to 6,519.80, 8,997.40 and 3,535.68

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Solution

The fourth proportional to 6,519.80, 8,997.40 and 3,535.68 is: 4,879.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.80 : 8,997.40 = 3,535.68 : x
  2. Step 2: Convert to fraction form
    6,519.80/8,997.40 = 3,535.68/x
  3. Step 3: Cross multiply
    6,519.80x = 8,997.40 × 3,535.68
  4. Step 4: Simplify right side
    6,519.80x = 31,811,927.23
  5. Step 5: Solve for x
    x = 31,811,927.23/6,519.80
  6. Step 6: Final answer
    x = 4,879.28

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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.