Home / 1,357.24-2,036.28-1,125.08

Finding the Fourth Proportional to 1,357.24, 2,036.28 and 1,125.08

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Solution

The fourth proportional to 1,357.24, 2,036.28 and 1,125.08 is: 1,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.24 : 2,036.28 = 1,125.08 : x
  2. Step 2: Convert to fraction form
    1,357.24/2,036.28 = 1,125.08/x
  3. Step 3: Cross multiply
    1,357.24x = 2,036.28 × 1,125.08
  4. Step 4: Simplify right side
    1,357.24x = 2,290,977.90
  5. Step 5: Solve for x
    x = 2,290,977.90/1,357.24
  6. Step 6: Final answer
    x = 1,687.97

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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.