Home / 3,340.56-4,606.98-2,160.40

Finding the Fourth Proportional to 3,340.56, 4,606.98 and 2,160.40

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Solution

The fourth proportional to 3,340.56, 4,606.98 and 2,160.40 is: 2,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.56 : 4,606.98 = 2,160.40 : x
  2. Step 2: Convert to fraction form
    3,340.56/4,606.98 = 2,160.40/x
  3. Step 3: Cross multiply
    3,340.56x = 4,606.98 × 2,160.40
  4. Step 4: Simplify right side
    3,340.56x = 9,952,919.59
  5. Step 5: Solve for x
    x = 9,952,919.59/3,340.56
  6. Step 6: Final answer
    x = 2,979.42

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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.