Home / 5,209.44-7,189.02-2,851.58

Finding the Fourth Proportional to 5,209.44, 7,189.02 and 2,851.58

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Solution

The fourth proportional to 5,209.44, 7,189.02 and 2,851.58 is: 3,935.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.44 : 7,189.02 = 2,851.58 : x
  2. Step 2: Convert to fraction form
    5,209.44/7,189.02 = 2,851.58/x
  3. Step 3: Cross multiply
    5,209.44x = 7,189.02 × 2,851.58
  4. Step 4: Simplify right side
    5,209.44x = 20,500,065.65
  5. Step 5: Solve for x
    x = 20,500,065.65/5,209.44
  6. Step 6: Final answer
    x = 3,935.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.