Home / 4,089.12-5,636.40-2,760.51

Finding the Fourth Proportional to 4,089.12, 5,636.40 and 2,760.51

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Solution

The fourth proportional to 4,089.12, 5,636.40 and 2,760.51 is: 3,805.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.12 : 5,636.40 = 2,760.51 : x
  2. Step 2: Convert to fraction form
    4,089.12/5,636.40 = 2,760.51/x
  3. Step 3: Cross multiply
    4,089.12x = 5,636.40 × 2,760.51
  4. Step 4: Simplify right side
    4,089.12x = 15,559,338.56
  5. Step 5: Solve for x
    x = 15,559,338.56/4,089.12
  6. Step 6: Final answer
    x = 3,805.06

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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.