Home / 1,357.68-2,036.52-1,087.14

Finding the Fourth Proportional to 1,357.68, 2,036.52 and 1,087.14

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Solution

The fourth proportional to 1,357.68, 2,036.52 and 1,087.14 is: 1,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.68 : 2,036.52 = 1,087.14 : x
  2. Step 2: Convert to fraction form
    1,357.68/2,036.52 = 1,087.14/x
  3. Step 3: Cross multiply
    1,357.68x = 2,036.52 × 1,087.14
  4. Step 4: Simplify right side
    1,357.68x = 2,213,982.35
  5. Step 5: Solve for x
    x = 2,213,982.35/1,357.68
  6. Step 6: Final answer
    x = 1,630.71

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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.