Home / 7,678.51-11,523.05-2,680.91

Finding the Fourth Proportional to 7,678.51, 11,523.05 and 2,680.91

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Solution

The fourth proportional to 7,678.51, 11,523.05 and 2,680.91 is: 4,023.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.51 : 11,523.05 = 2,680.91 : x
  2. Step 2: Convert to fraction form
    7,678.51/11,523.05 = 2,680.91/x
  3. Step 3: Cross multiply
    7,678.51x = 11,523.05 × 2,680.91
  4. Step 4: Simplify right side
    7,678.51x = 30,892,242.22
  5. Step 5: Solve for x
    x = 30,892,242.22/7,678.51
  6. Step 6: Final answer
    x = 4,023.21

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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.