Home / 4,856.15-7,289.70-3,215.90

Finding the Fourth Proportional to 4,856.15, 7,289.70 and 3,215.90

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Solution

The fourth proportional to 4,856.15, 7,289.70 and 3,215.90 is: 4,827.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,856.15 : 7,289.70 = 3,215.90 : x
  2. Step 2: Convert to fraction form
    4,856.15/7,289.70 = 3,215.90/x
  3. Step 3: Cross multiply
    4,856.15x = 7,289.70 × 3,215.90
  4. Step 4: Simplify right side
    4,856.15x = 23,442,946.23
  5. Step 5: Solve for x
    x = 23,442,946.23/4,856.15
  6. Step 6: Final answer
    x = 4,827.48

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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.