Home / 5,130.74-7,080.72-3,006.29

Finding the Fourth Proportional to 5,130.74, 7,080.72 and 3,006.29

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Solution

The fourth proportional to 5,130.74, 7,080.72 and 3,006.29 is: 4,148.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.74 : 7,080.72 = 3,006.29 : x
  2. Step 2: Convert to fraction form
    5,130.74/7,080.72 = 3,006.29/x
  3. Step 3: Cross multiply
    5,130.74x = 7,080.72 × 3,006.29
  4. Step 4: Simplify right side
    5,130.74x = 21,286,697.73
  5. Step 5: Solve for x
    x = 21,286,697.73/5,130.74
  6. Step 6: Final answer
    x = 4,148.86

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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.