Home / 5,377.72-7,421.16-3,019.84

Finding the Fourth Proportional to 5,377.72, 7,421.16 and 3,019.84

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Solution

The fourth proportional to 5,377.72, 7,421.16 and 3,019.84 is: 4,167.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.72 : 7,421.16 = 3,019.84 : x
  2. Step 2: Convert to fraction form
    5,377.72/7,421.16 = 3,019.84/x
  3. Step 3: Cross multiply
    5,377.72x = 7,421.16 × 3,019.84
  4. Step 4: Simplify right side
    5,377.72x = 22,410,715.81
  5. Step 5: Solve for x
    x = 22,410,715.81/5,377.72
  6. Step 6: Final answer
    x = 4,167.33

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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.