Home / 5,377.38-7,421.39-3,019.06

Finding the Fourth Proportional to 5,377.38, 7,421.39 and 3,019.06

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Solution

The fourth proportional to 5,377.38, 7,421.39 and 3,019.06 is: 4,166.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.38 : 7,421.39 = 3,019.06 : x
  2. Step 2: Convert to fraction form
    5,377.38/7,421.39 = 3,019.06/x
  3. Step 3: Cross multiply
    5,377.38x = 7,421.39 × 3,019.06
  4. Step 4: Simplify right side
    5,377.38x = 22,405,621.69
  5. Step 5: Solve for x
    x = 22,405,621.69/5,377.38
  6. Step 6: Final answer
    x = 4,166.64

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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.