Home / 4,195.20-6,293.75-1,421.72

Finding the Fourth Proportional to 4,195.20, 6,293.75 and 1,421.72

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Solution

The fourth proportional to 4,195.20, 6,293.75 and 1,421.72 is: 2,132.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,195.20 : 6,293.75 = 1,421.72 : x
  2. Step 2: Convert to fraction form
    4,195.20/6,293.75 = 1,421.72/x
  3. Step 3: Cross multiply
    4,195.20x = 6,293.75 × 1,421.72
  4. Step 4: Simplify right side
    4,195.20x = 8,947,911.67
  5. Step 5: Solve for x
    x = 8,947,911.67/4,195.20
  6. Step 6: Final answer
    x = 2,132.89

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1.5x scale

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.