Home / 2,856.04-3,940.11-1,660.94

Finding the Fourth Proportional to 2,856.04, 3,940.11 and 1,660.94

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Solution

The fourth proportional to 2,856.04, 3,940.11 and 1,660.94 is: 2,291.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.04 : 3,940.11 = 1,660.94 : x
  2. Step 2: Convert to fraction form
    2,856.04/3,940.11 = 1,660.94/x
  3. Step 3: Cross multiply
    2,856.04x = 3,940.11 × 1,660.94
  4. Step 4: Simplify right side
    2,856.04x = 6,544,281.38
  5. Step 5: Solve for x
    x = 6,544,281.38/2,856.04
  6. Step 6: Final answer
    x = 2,291.38

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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.