Home / 3,128.88-4,708.35-2,577.57

Finding the Fourth Proportional to 3,128.88, 4,708.35 and 2,577.57

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Solution

The fourth proportional to 3,128.88, 4,708.35 and 2,577.57 is: 3,878.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.88 : 4,708.35 = 2,577.57 : x
  2. Step 2: Convert to fraction form
    3,128.88/4,708.35 = 2,577.57/x
  3. Step 3: Cross multiply
    3,128.88x = 4,708.35 × 2,577.57
  4. Step 4: Simplify right side
    3,128.88x = 12,136,101.71
  5. Step 5: Solve for x
    x = 12,136,101.71/3,128.88
  6. Step 6: Final answer
    x = 3,878.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.