Home / 4,678.07-7,018.62-3,124.38

Finding the Fourth Proportional to 4,678.07, 7,018.62 and 3,124.38

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Solution

The fourth proportional to 4,678.07, 7,018.62 and 3,124.38 is: 4,687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.07 : 7,018.62 = 3,124.38 : x
  2. Step 2: Convert to fraction form
    4,678.07/7,018.62 = 3,124.38/x
  3. Step 3: Cross multiply
    4,678.07x = 7,018.62 × 3,124.38
  4. Step 4: Simplify right side
    4,678.07x = 21,928,835.96
  5. Step 5: Solve for x
    x = 21,928,835.96/4,678.07
  6. Step 6: Final answer
    x = 4,687.59

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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.