Home / 4,000.64-5,519.40-2,822.72

Finding the Fourth Proportional to 4,000.64, 5,519.40 and 2,822.72

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Solution

The fourth proportional to 4,000.64, 5,519.40 and 2,822.72 is: 3,894.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.64 : 5,519.40 = 2,822.72 : x
  2. Step 2: Convert to fraction form
    4,000.64/5,519.40 = 2,822.72/x
  3. Step 3: Cross multiply
    4,000.64x = 5,519.40 × 2,822.72
  4. Step 4: Simplify right side
    4,000.64x = 15,579,720.77
  5. Step 5: Solve for x
    x = 15,579,720.77/4,000.64
  6. Step 6: Final answer
    x = 3,894.31

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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.