Home / 6,121.74-9,181.39-3,000.40

Finding the Fourth Proportional to 6,121.74, 9,181.39 and 3,000.40

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Solution

The fourth proportional to 6,121.74, 9,181.39 and 3,000.40 is: 4,500.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.74 : 9,181.39 = 3,000.40 : x
  2. Step 2: Convert to fraction form
    6,121.74/9,181.39 = 3,000.40/x
  3. Step 3: Cross multiply
    6,121.74x = 9,181.39 × 3,000.40
  4. Step 4: Simplify right side
    6,121.74x = 27,547,842.56
  5. Step 5: Solve for x
    x = 27,547,842.56/6,121.74
  6. Step 6: Final answer
    x = 4,500.00

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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.