Home / 3,653.28-5,041.40-2,160.88

Finding the Fourth Proportional to 3,653.28, 5,041.40 and 2,160.88

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Solution

The fourth proportional to 3,653.28, 5,041.40 and 2,160.88 is: 2,981.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.28 : 5,041.40 = 2,160.88 : x
  2. Step 2: Convert to fraction form
    3,653.28/5,041.40 = 2,160.88/x
  3. Step 3: Cross multiply
    3,653.28x = 5,041.40 × 2,160.88
  4. Step 4: Simplify right side
    3,653.28x = 10,893,860.43
  5. Step 5: Solve for x
    x = 10,893,860.43/3,653.28
  6. Step 6: Final answer
    x = 2,981.94

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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.