Home / 4,758.78-7,134.39-1,983.72

Finding the Fourth Proportional to 4,758.78, 7,134.39 and 1,983.72

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Solution

The fourth proportional to 4,758.78, 7,134.39 and 1,983.72 is: 2,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.78 : 7,134.39 = 1,983.72 : x
  2. Step 2: Convert to fraction form
    4,758.78/7,134.39 = 1,983.72/x
  3. Step 3: Cross multiply
    4,758.78x = 7,134.39 × 1,983.72
  4. Step 4: Simplify right side
    4,758.78x = 14,152,632.13
  5. Step 5: Solve for x
    x = 14,152,632.13/4,758.78
  6. Step 6: Final answer
    x = 2,974.00

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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.