Home / 5,130.12-7,694.46-1,842.72

Finding the Fourth Proportional to 5,130.12, 7,694.46 and 1,842.72

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Solution

The fourth proportional to 5,130.12, 7,694.46 and 1,842.72 is: 2,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.12 : 7,694.46 = 1,842.72 : x
  2. Step 2: Convert to fraction form
    5,130.12/7,694.46 = 1,842.72/x
  3. Step 3: Cross multiply
    5,130.12x = 7,694.46 × 1,842.72
  4. Step 4: Simplify right side
    5,130.12x = 14,178,735.33
  5. Step 5: Solve for x
    x = 14,178,735.33/5,130.12
  6. Step 6: Final answer
    x = 2,763.82

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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.