Home / 4,615.21-6,947.75-4,213.45

Finding the Fourth Proportional to 4,615.21, 6,947.75 and 4,213.45

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Solution

The fourth proportional to 4,615.21, 6,947.75 and 4,213.45 is: 6,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615.21 : 6,947.75 = 4,213.45 : x
  2. Step 2: Convert to fraction form
    4,615.21/6,947.75 = 4,213.45/x
  3. Step 3: Cross multiply
    4,615.21x = 6,947.75 × 4,213.45
  4. Step 4: Simplify right side
    4,615.21x = 29,273,997.24
  5. Step 5: Solve for x
    x = 29,273,997.24/4,615.21
  6. Step 6: Final answer
    x = 6,342.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.