Home / 2,860.23-3,945.96-1,865.16

Finding the Fourth Proportional to 2,860.23, 3,945.96 and 1,865.16

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Solution

The fourth proportional to 2,860.23, 3,945.96 and 1,865.16 is: 2,573.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.23 : 3,945.96 = 1,865.16 : x
  2. Step 2: Convert to fraction form
    2,860.23/3,945.96 = 1,865.16/x
  3. Step 3: Cross multiply
    2,860.23x = 3,945.96 × 1,865.16
  4. Step 4: Simplify right side
    2,860.23x = 7,359,846.75
  5. Step 5: Solve for x
    x = 7,359,846.75/2,860.23
  6. Step 6: Final answer
    x = 2,573.17

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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.