Home / 2,860.12-3,944.73-1,865.71

Finding the Fourth Proportional to 2,860.12, 3,944.73 and 1,865.71

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Solution

The fourth proportional to 2,860.12, 3,944.73 and 1,865.71 is: 2,573.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.12 : 3,944.73 = 1,865.71 : x
  2. Step 2: Convert to fraction form
    2,860.12/3,944.73 = 1,865.71/x
  3. Step 3: Cross multiply
    2,860.12x = 3,944.73 × 1,865.71
  4. Step 4: Simplify right side
    2,860.12x = 7,359,722.21
  5. Step 5: Solve for x
    x = 7,359,722.21/2,860.12
  6. Step 6: Final answer
    x = 2,573.22

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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.