Home / 4,209.88-5,808.72-2,883.28

Finding the Fourth Proportional to 4,209.88, 5,808.72 and 2,883.28

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Solution

The fourth proportional to 4,209.88, 5,808.72 and 2,883.28 is: 3,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.88 : 5,808.72 = 2,883.28 : x
  2. Step 2: Convert to fraction form
    4,209.88/5,808.72 = 2,883.28/x
  3. Step 3: Cross multiply
    4,209.88x = 5,808.72 × 2,883.28
  4. Step 4: Simplify right side
    4,209.88x = 16,748,166.20
  5. Step 5: Solve for x
    x = 16,748,166.20/4,209.88
  6. Step 6: Final answer
    x = 3,978.30

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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.