Home / 4,715.61-7,074.43-1,428.96

Finding the Fourth Proportional to 4,715.61, 7,074.43 and 1,428.96

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Solution

The fourth proportional to 4,715.61, 7,074.43 and 1,428.96 is: 2,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.61 : 7,074.43 = 1,428.96 : x
  2. Step 2: Convert to fraction form
    4,715.61/7,074.43 = 1,428.96/x
  3. Step 3: Cross multiply
    4,715.61x = 7,074.43 × 1,428.96
  4. Step 4: Simplify right side
    4,715.61x = 10,109,077.49
  5. Step 5: Solve for x
    x = 10,109,077.49/4,715.61
  6. Step 6: Final answer
    x = 2,143.75

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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.