Home / 5,125.41-7,688.79-1,838.25

Finding the Fourth Proportional to 5,125.41, 7,688.79 and 1,838.25

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Solution

The fourth proportional to 5,125.41, 7,688.79 and 1,838.25 is: 2,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.41 : 7,688.79 = 1,838.25 : x
  2. Step 2: Convert to fraction form
    5,125.41/7,688.79 = 1,838.25/x
  3. Step 3: Cross multiply
    5,125.41x = 7,688.79 × 1,838.25
  4. Step 4: Simplify right side
    5,125.41x = 14,133,918.22
  5. Step 5: Solve for x
    x = 14,133,918.22/5,125.41
  6. Step 6: Final answer
    x = 2,757.62

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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.