Home / 4,653.28-6,421.92-2,557.78

Finding the Fourth Proportional to 4,653.28, 6,421.92 and 2,557.78

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Solution

The fourth proportional to 4,653.28, 6,421.92 and 2,557.78 is: 3,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,653.28 : 6,421.92 = 2,557.78 : x
  2. Step 2: Convert to fraction form
    4,653.28/6,421.92 = 2,557.78/x
  3. Step 3: Cross multiply
    4,653.28x = 6,421.92 × 2,557.78
  4. Step 4: Simplify right side
    4,653.28x = 16,425,858.54
  5. Step 5: Solve for x
    x = 16,425,858.54/4,653.28
  6. Step 6: Final answer
    x = 3,529.95

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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.