Home / 1,518.14-2,095.08-855.02

Finding the Fourth Proportional to 1,518.14, 2,095.08 and 855.02

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Solution

The fourth proportional to 1,518.14, 2,095.08 and 855.02 is: 1,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.14 : 2,095.08 = 855.02 : x
  2. Step 2: Convert to fraction form
    1,518.14/2,095.08 = 855.02/x
  3. Step 3: Cross multiply
    1,518.14x = 2,095.08 × 855.02
  4. Step 4: Simplify right side
    1,518.14x = 1,791,335.30
  5. Step 5: Solve for x
    x = 1,791,335.30/1,518.14
  6. Step 6: Final answer
    x = 1,179.95

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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.