Home / 1,869.58-2,581.98-1,518.99

Finding the Fourth Proportional to 1,869.58, 2,581.98 and 1,518.99

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Solution

The fourth proportional to 1,869.58, 2,581.98 and 1,518.99 is: 2,097.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.58 : 2,581.98 = 1,518.99 : x
  2. Step 2: Convert to fraction form
    1,869.58/2,581.98 = 1,518.99/x
  3. Step 3: Cross multiply
    1,869.58x = 2,581.98 × 1,518.99
  4. Step 4: Simplify right side
    1,869.58x = 3,921,986.42
  5. Step 5: Solve for x
    x = 3,921,986.42/1,869.58
  6. Step 6: Final answer
    x = 2,097.79

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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.