Home / 5,620.84-8,431.26-1,725.28

Finding the Fourth Proportional to 5,620.84, 8,431.26 and 1,725.28

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Solution

The fourth proportional to 5,620.84, 8,431.26 and 1,725.28 is: 2,587.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.84 : 8,431.26 = 1,725.28 : x
  2. Step 2: Convert to fraction form
    5,620.84/8,431.26 = 1,725.28/x
  3. Step 3: Cross multiply
    5,620.84x = 8,431.26 × 1,725.28
  4. Step 4: Simplify right side
    5,620.84x = 14,546,284.25
  5. Step 5: Solve for x
    x = 14,546,284.25/5,620.84
  6. Step 6: Final answer
    x = 2,587.92

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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.