Home / 5,130.96-7,080.62-3,006.24

Finding the Fourth Proportional to 5,130.96, 7,080.62 and 3,006.24

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Solution

The fourth proportional to 5,130.96, 7,080.62 and 3,006.24 is: 4,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.96 : 7,080.62 = 3,006.24 : x
  2. Step 2: Convert to fraction form
    5,130.96/7,080.62 = 3,006.24/x
  3. Step 3: Cross multiply
    5,130.96x = 7,080.62 × 3,006.24
  4. Step 4: Simplify right side
    5,130.96x = 21,286,028.04
  5. Step 5: Solve for x
    x = 21,286,028.04/5,130.96
  6. Step 6: Final answer
    x = 4,148.55

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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.