Home / 5,680.21-7,836.49-4,191.70

Finding the Fourth Proportional to 5,680.21, 7,836.49 and 4,191.70

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Solution

The fourth proportional to 5,680.21, 7,836.49 and 4,191.70 is: 5,782.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.21 : 7,836.49 = 4,191.70 : x
  2. Step 2: Convert to fraction form
    5,680.21/7,836.49 = 4,191.70/x
  3. Step 3: Cross multiply
    5,680.21x = 7,836.49 × 4,191.70
  4. Step 4: Simplify right side
    5,680.21x = 32,848,215.13
  5. Step 5: Solve for x
    x = 32,848,215.13/5,680.21
  6. Step 6: Final answer
    x = 5,782.92

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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.