Home / 1,927.81-2,655.61-1,828.99

Finding the Fourth Proportional to 1,927.81, 2,655.61 and 1,828.99

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Solution

The fourth proportional to 1,927.81, 2,655.61 and 1,828.99 is: 2,519.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.81 : 2,655.61 = 1,828.99 : x
  2. Step 2: Convert to fraction form
    1,927.81/2,655.61 = 1,828.99/x
  3. Step 3: Cross multiply
    1,927.81x = 2,655.61 × 1,828.99
  4. Step 4: Simplify right side
    1,927.81x = 4,857,084.13
  5. Step 5: Solve for x
    x = 4,857,084.13/1,927.81
  6. Step 6: Final answer
    x = 2,519.48

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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.