Home / 4,890.32-7,345.32-2,919.81

Finding the Fourth Proportional to 4,890.32, 7,345.32 and 2,919.81

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Solution

The fourth proportional to 4,890.32, 7,345.32 and 2,919.81 is: 4,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.32 : 7,345.32 = 2,919.81 : x
  2. Step 2: Convert to fraction form
    4,890.32/7,345.32 = 2,919.81/x
  3. Step 3: Cross multiply
    4,890.32x = 7,345.32 × 2,919.81
  4. Step 4: Simplify right side
    4,890.32x = 21,446,955.38
  5. Step 5: Solve for x
    x = 21,446,955.38/4,890.32
  6. Step 6: Final answer
    x = 4,385.59

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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.