Home / 5,416.63-7,475.50-3,905.43

Finding the Fourth Proportional to 5,416.63, 7,475.50 and 3,905.43

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Solution

The fourth proportional to 5,416.63, 7,475.50 and 3,905.43 is: 5,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.63 : 7,475.50 = 3,905.43 : x
  2. Step 2: Convert to fraction form
    5,416.63/7,475.50 = 3,905.43/x
  3. Step 3: Cross multiply
    5,416.63x = 7,475.50 × 3,905.43
  4. Step 4: Simplify right side
    5,416.63x = 29,195,022.44
  5. Step 5: Solve for x
    x = 29,195,022.44/5,416.63
  6. Step 6: Final answer
    x = 5,389.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.