Home / 4,145.10-6,217.65-2,913.90

Finding the Fourth Proportional to 4,145.10, 6,217.65 and 2,913.90

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Solution

The fourth proportional to 4,145.10, 6,217.65 and 2,913.90 is: 4,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.10 : 6,217.65 = 2,913.90 : x
  2. Step 2: Convert to fraction form
    4,145.10/6,217.65 = 2,913.90/x
  3. Step 3: Cross multiply
    4,145.10x = 6,217.65 × 2,913.90
  4. Step 4: Simplify right side
    4,145.10x = 18,117,610.34
  5. Step 5: Solve for x
    x = 18,117,610.34/4,145.10
  6. Step 6: Final answer
    x = 4,370.85

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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.