Home / 5,245.80-7,236-4,124.94

Finding the Fourth Proportional to 5,245.80, 7,236 and 4,124.94

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Solution

The fourth proportional to 5,245.80, 7,236 and 4,124.94 is: 5,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.80 : 7,236 = 4,124.94 : x
  2. Step 2: Convert to fraction form
    5,245.80/7,236 = 4,124.94/x
  3. Step 3: Cross multiply
    5,245.80x = 7,236 × 4,124.94
  4. Step 4: Simplify right side
    5,245.80x = 29,848,065.84
  5. Step 5: Solve for x
    x = 29,848,065.84/5,245.80
  6. Step 6: Final answer
    x = 5,689.90

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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.