Home / 4,750.88-7,126.32-1,288.13

Finding the Fourth Proportional to 4,750.88, 7,126.32 and 1,288.13

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Solution

The fourth proportional to 4,750.88, 7,126.32 and 1,288.13 is: 1,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.88 : 7,126.32 = 1,288.13 : x
  2. Step 2: Convert to fraction form
    4,750.88/7,126.32 = 1,288.13/x
  3. Step 3: Cross multiply
    4,750.88x = 7,126.32 × 1,288.13
  4. Step 4: Simplify right side
    4,750.88x = 9,179,626.58
  5. Step 5: Solve for x
    x = 9,179,626.58/4,750.88
  6. Step 6: Final answer
    x = 1,932.20

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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.