Home / 5,145.07-7,099.28-3,020.84

Finding the Fourth Proportional to 5,145.07, 7,099.28 and 3,020.84

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Solution

The fourth proportional to 5,145.07, 7,099.28 and 3,020.84 is: 4,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.07 : 7,099.28 = 3,020.84 : x
  2. Step 2: Convert to fraction form
    5,145.07/7,099.28 = 3,020.84/x
  3. Step 3: Cross multiply
    5,145.07x = 7,099.28 × 3,020.84
  4. Step 4: Simplify right side
    5,145.07x = 21,445,789.00
  5. Step 5: Solve for x
    x = 21,445,789.00/5,145.07
  6. Step 6: Final answer
    x = 4,168.23

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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.