Home / 4,071.42-5,619.88-2,392.78

Finding the Fourth Proportional to 4,071.42, 5,619.88 and 2,392.78

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Solution

The fourth proportional to 4,071.42, 5,619.88 and 2,392.78 is: 3,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.42 : 5,619.88 = 2,392.78 : x
  2. Step 2: Convert to fraction form
    4,071.42/5,619.88 = 2,392.78/x
  3. Step 3: Cross multiply
    4,071.42x = 5,619.88 × 2,392.78
  4. Step 4: Simplify right side
    4,071.42x = 13,447,136.47
  5. Step 5: Solve for x
    x = 13,447,136.47/4,071.42
  6. Step 6: Final answer
    x = 3,302.81

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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.