Home / 5,191.72-7,164.40-2,953.84

Finding the Fourth Proportional to 5,191.72, 7,164.40 and 2,953.84

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Solution

The fourth proportional to 5,191.72, 7,164.40 and 2,953.84 is: 4,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.72 : 7,164.40 = 2,953.84 : x
  2. Step 2: Convert to fraction form
    5,191.72/7,164.40 = 2,953.84/x
  3. Step 3: Cross multiply
    5,191.72x = 7,164.40 × 2,953.84
  4. Step 4: Simplify right side
    5,191.72x = 21,162,491.30
  5. Step 5: Solve for x
    x = 21,162,491.30/5,191.72
  6. Step 6: Final answer
    x = 4,076.20

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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.