Home / 5,103.24-7,653.76-1,405.08

Finding the Fourth Proportional to 5,103.24, 7,653.76 and 1,405.08

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Solution

The fourth proportional to 5,103.24, 7,653.76 and 1,405.08 is: 2,107.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.24 : 7,653.76 = 1,405.08 : x
  2. Step 2: Convert to fraction form
    5,103.24/7,653.76 = 1,405.08/x
  3. Step 3: Cross multiply
    5,103.24x = 7,653.76 × 1,405.08
  4. Step 4: Simplify right side
    5,103.24x = 10,754,145.10
  5. Step 5: Solve for x
    x = 10,754,145.10/5,103.24
  6. Step 6: Final answer
    x = 2,107.32

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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.