Home / 4,139.42-5,712.39-2,276.42

Finding the Fourth Proportional to 4,139.42, 5,712.39 and 2,276.42

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Solution

The fourth proportional to 4,139.42, 5,712.39 and 2,276.42 is: 3,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.42 : 5,712.39 = 2,276.42 : x
  2. Step 2: Convert to fraction form
    4,139.42/5,712.39 = 2,276.42/x
  3. Step 3: Cross multiply
    4,139.42x = 5,712.39 × 2,276.42
  4. Step 4: Simplify right side
    4,139.42x = 13,003,774.55
  5. Step 5: Solve for x
    x = 13,003,774.55/4,139.42
  6. Step 6: Final answer
    x = 3,141.45

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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.