Home / 4,980.69-7,471.89-2,057.40

Finding the Fourth Proportional to 4,980.69, 7,471.89 and 2,057.40

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Solution

The fourth proportional to 4,980.69, 7,471.89 and 2,057.40 is: 3,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.69 : 7,471.89 = 2,057.40 : x
  2. Step 2: Convert to fraction form
    4,980.69/7,471.89 = 2,057.40/x
  3. Step 3: Cross multiply
    4,980.69x = 7,471.89 × 2,057.40
  4. Step 4: Simplify right side
    4,980.69x = 15,372,666.49
  5. Step 5: Solve for x
    x = 15,372,666.49/4,980.69
  6. Step 6: Final answer
    x = 3,086.45

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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.