Home / 4,839.81-6,678.96-2,715.39

Finding the Fourth Proportional to 4,839.81, 6,678.96 and 2,715.39

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Solution

The fourth proportional to 4,839.81, 6,678.96 and 2,715.39 is: 3,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.81 : 6,678.96 = 2,715.39 : x
  2. Step 2: Convert to fraction form
    4,839.81/6,678.96 = 2,715.39/x
  3. Step 3: Cross multiply
    4,839.81x = 6,678.96 × 2,715.39
  4. Step 4: Simplify right side
    4,839.81x = 18,135,981.19
  5. Step 5: Solve for x
    x = 18,135,981.19/4,839.81
  6. Step 6: Final answer
    x = 3,747.25

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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.