Home / 5,130.78-7,694.94-1,433.13

Finding the Fourth Proportional to 5,130.78, 7,694.94 and 1,433.13

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Solution

The fourth proportional to 5,130.78, 7,694.94 and 1,433.13 is: 2,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.78 : 7,694.94 = 1,433.13 : x
  2. Step 2: Convert to fraction form
    5,130.78/7,694.94 = 1,433.13/x
  3. Step 3: Cross multiply
    5,130.78x = 7,694.94 × 1,433.13
  4. Step 4: Simplify right side
    5,130.78x = 11,027,849.36
  5. Step 5: Solve for x
    x = 11,027,849.36/5,130.78
  6. Step 6: Final answer
    x = 2,149.35

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1.5x scale

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.