Home / 4,813.24-7,215-1,890.40

Finding the Fourth Proportional to 4,813.24, 7,215 and 1,890.40

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Solution

The fourth proportional to 4,813.24, 7,215 and 1,890.40 is: 2,833.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.24 : 7,215 = 1,890.40 : x
  2. Step 2: Convert to fraction form
    4,813.24/7,215 = 1,890.40/x
  3. Step 3: Cross multiply
    4,813.24x = 7,215 × 1,890.40
  4. Step 4: Simplify right side
    4,813.24x = 13,639,236
  5. Step 5: Solve for x
    x = 13,639,236/4,813.24
  6. Step 6: Final answer
    x = 2,833.69

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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.