Home / 4,678.85-7,018.25-1,904.87

Finding the Fourth Proportional to 4,678.85, 7,018.25 and 1,904.87

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Solution

The fourth proportional to 4,678.85, 7,018.25 and 1,904.87 is: 2,857.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.85 : 7,018.25 = 1,904.87 : x
  2. Step 2: Convert to fraction form
    4,678.85/7,018.25 = 1,904.87/x
  3. Step 3: Cross multiply
    4,678.85x = 7,018.25 × 1,904.87
  4. Step 4: Simplify right side
    4,678.85x = 13,368,809.26
  5. Step 5: Solve for x
    x = 13,368,809.26/4,678.85
  6. Step 6: Final answer
    x = 2,857.29

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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.