Home / 5,712.88-8,570.58-2,428.78

Finding the Fourth Proportional to 5,712.88, 8,570.58 and 2,428.78

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Solution

The fourth proportional to 5,712.88, 8,570.58 and 2,428.78 is: 3,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.88 : 8,570.58 = 2,428.78 : x
  2. Step 2: Convert to fraction form
    5,712.88/8,570.58 = 2,428.78/x
  3. Step 3: Cross multiply
    5,712.88x = 8,570.58 × 2,428.78
  4. Step 4: Simplify right side
    5,712.88x = 20,816,053.29
  5. Step 5: Solve for x
    x = 20,816,053.29/5,712.88
  6. Step 6: Final answer
    x = 3,643.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.