Home / 2,870.10-3,960.41-1,610.99

Finding the Fourth Proportional to 2,870.10, 3,960.41 and 1,610.99

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Solution

The fourth proportional to 2,870.10, 3,960.41 and 1,610.99 is: 2,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.10 : 3,960.41 = 1,610.99 : x
  2. Step 2: Convert to fraction form
    2,870.10/3,960.41 = 1,610.99/x
  3. Step 3: Cross multiply
    2,870.10x = 3,960.41 × 1,610.99
  4. Step 4: Simplify right side
    2,870.10x = 6,380,153.05
  5. Step 5: Solve for x
    x = 6,380,153.05/2,870.10
  6. Step 6: Final answer
    x = 2,222.97

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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.