Home / 5,619.62-7,750.40-4,219.94

Finding the Fourth Proportional to 5,619.62, 7,750.40 and 4,219.94

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Solution

The fourth proportional to 5,619.62, 7,750.40 and 4,219.94 is: 5,820.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.62 : 7,750.40 = 4,219.94 : x
  2. Step 2: Convert to fraction form
    5,619.62/7,750.40 = 4,219.94/x
  3. Step 3: Cross multiply
    5,619.62x = 7,750.40 × 4,219.94
  4. Step 4: Simplify right side
    5,619.62x = 32,706,222.98
  5. Step 5: Solve for x
    x = 32,706,222.98/5,619.62
  6. Step 6: Final answer
    x = 5,820.01

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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.