Home / 5,153.15-7,729.68-1,455.35

Finding the Fourth Proportional to 5,153.15, 7,729.68 and 1,455.35

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Solution

The fourth proportional to 5,153.15, 7,729.68 and 1,455.35 is: 2,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.15 : 7,729.68 = 1,455.35 : x
  2. Step 2: Convert to fraction form
    5,153.15/7,729.68 = 1,455.35/x
  3. Step 3: Cross multiply
    5,153.15x = 7,729.68 × 1,455.35
  4. Step 4: Simplify right side
    5,153.15x = 11,249,351.14
  5. Step 5: Solve for x
    x = 11,249,351.14/5,153.15
  6. Step 6: Final answer
    x = 2,183.01

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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.