Home / 5,130.80-7,691.58-1,843.12

Finding the Fourth Proportional to 5,130.80, 7,691.58 and 1,843.12

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Solution

The fourth proportional to 5,130.80, 7,691.58 and 1,843.12 is: 2,763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.80 : 7,691.58 = 1,843.12 : x
  2. Step 2: Convert to fraction form
    5,130.80/7,691.58 = 1,843.12/x
  3. Step 3: Cross multiply
    5,130.80x = 7,691.58 × 1,843.12
  4. Step 4: Simplify right side
    5,130.80x = 14,176,504.93
  5. Step 5: Solve for x
    x = 14,176,504.93/5,130.80
  6. Step 6: Final answer
    x = 2,763.02

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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.