Home / 4,678.69-7,015.39-1,557.02

Finding the Fourth Proportional to 4,678.69, 7,015.39 and 1,557.02

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Solution

The fourth proportional to 4,678.69, 7,015.39 and 1,557.02 is: 2,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.69 : 7,015.39 = 1,557.02 : x
  2. Step 2: Convert to fraction form
    4,678.69/7,015.39 = 1,557.02/x
  3. Step 3: Cross multiply
    4,678.69x = 7,015.39 × 1,557.02
  4. Step 4: Simplify right side
    4,678.69x = 10,923,102.54
  5. Step 5: Solve for x
    x = 10,923,102.54/4,678.69
  6. Step 6: Final answer
    x = 2,334.65

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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.