Home / 3,320.88-4,580.40-2,822.72

Finding the Fourth Proportional to 3,320.88, 4,580.40 and 2,822.72

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Solution

The fourth proportional to 3,320.88, 4,580.40 and 2,822.72 is: 3,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.88 : 4,580.40 = 2,822.72 : x
  2. Step 2: Convert to fraction form
    3,320.88/4,580.40 = 2,822.72/x
  3. Step 3: Cross multiply
    3,320.88x = 4,580.40 × 2,822.72
  4. Step 4: Simplify right side
    3,320.88x = 12,929,186.69
  5. Step 5: Solve for x
    x = 12,929,186.69/3,320.88
  6. Step 6: Final answer
    x = 3,893.30

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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.