Home / 5,715.64-8,574.36-2,428.75

Finding the Fourth Proportional to 5,715.64, 8,574.36 and 2,428.75

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Solution

The fourth proportional to 5,715.64, 8,574.36 and 2,428.75 is: 3,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.64 : 8,574.36 = 2,428.75 : x
  2. Step 2: Convert to fraction form
    5,715.64/8,574.36 = 2,428.75/x
  3. Step 3: Cross multiply
    5,715.64x = 8,574.36 × 2,428.75
  4. Step 4: Simplify right side
    5,715.64x = 20,824,976.85
  5. Step 5: Solve for x
    x = 20,824,976.85/5,715.64
  6. Step 6: Final answer
    x = 3,643.51

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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.