Home / 3,030.99-4,182.81-1,836

Finding the Fourth Proportional to 3,030.99, 4,182.81 and 1,836

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Solution

The fourth proportional to 3,030.99, 4,182.81 and 1,836 is: 2,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.99 : 4,182.81 = 1,836 : x
  2. Step 2: Convert to fraction form
    3,030.99/4,182.81 = 1,836/x
  3. Step 3: Cross multiply
    3,030.99x = 4,182.81 × 1,836
  4. Step 4: Simplify right side
    3,030.99x = 7,679,639.16
  5. Step 5: Solve for x
    x = 7,679,639.16/3,030.99
  6. Step 6: Final answer
    x = 2,533.71

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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.