Home / 6,519.80-9,776.78-1,903.16

Finding the Fourth Proportional to 6,519.80, 9,776.78 and 1,903.16

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Solution

The fourth proportional to 6,519.80, 9,776.78 and 1,903.16 is: 2,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.80 : 9,776.78 = 1,903.16 : x
  2. Step 2: Convert to fraction form
    6,519.80/9,776.78 = 1,903.16/x
  3. Step 3: Cross multiply
    6,519.80x = 9,776.78 × 1,903.16
  4. Step 4: Simplify right side
    6,519.80x = 18,606,776.62
  5. Step 5: Solve for x
    x = 18,606,776.62/6,519.80
  6. Step 6: Final answer
    x = 2,853.89

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1.5x scale

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.