Home / 4,213.60-5,817.88-2,722.40

Finding the Fourth Proportional to 4,213.60, 5,817.88 and 2,722.40

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Solution

The fourth proportional to 4,213.60, 5,817.88 and 2,722.40 is: 3,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.60 : 5,817.88 = 2,722.40 : x
  2. Step 2: Convert to fraction form
    4,213.60/5,817.88 = 2,722.40/x
  3. Step 3: Cross multiply
    4,213.60x = 5,817.88 × 2,722.40
  4. Step 4: Simplify right side
    4,213.60x = 15,838,596.51
  5. Step 5: Solve for x
    x = 15,838,596.51/4,213.60
  6. Step 6: Final answer
    x = 3,758.92

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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.