Home / 7,731.81-11,597.69-2,800.30

Finding the Fourth Proportional to 7,731.81, 11,597.69 and 2,800.30

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Solution

The fourth proportional to 7,731.81, 11,597.69 and 2,800.30 is: 4,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.81 : 11,597.69 = 2,800.30 : x
  2. Step 2: Convert to fraction form
    7,731.81/11,597.69 = 2,800.30/x
  3. Step 3: Cross multiply
    7,731.81x = 11,597.69 × 2,800.30
  4. Step 4: Simplify right side
    7,731.81x = 32,476,939.32
  5. Step 5: Solve for x
    x = 32,476,939.32/7,731.81
  6. Step 6: Final answer
    x = 4,200.43

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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.