Home / 4,213.89-6,320.90-1,292.22

Finding the Fourth Proportional to 4,213.89, 6,320.90 and 1,292.22

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Solution

The fourth proportional to 4,213.89, 6,320.90 and 1,292.22 is: 1,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.89 : 6,320.90 = 1,292.22 : x
  2. Step 2: Convert to fraction form
    4,213.89/6,320.90 = 1,292.22/x
  3. Step 3: Cross multiply
    4,213.89x = 6,320.90 × 1,292.22
  4. Step 4: Simplify right side
    4,213.89x = 8,167,996.63
  5. Step 5: Solve for x
    x = 8,167,996.63/4,213.89
  6. Step 6: Final answer
    x = 1,938.35

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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.