Home / 5,377.40-7,420.79-3,019.53

Finding the Fourth Proportional to 5,377.40, 7,420.79 and 3,019.53

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Solution

The fourth proportional to 5,377.40, 7,420.79 and 3,019.53 is: 4,166.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.40 : 7,420.79 = 3,019.53 : x
  2. Step 2: Convert to fraction form
    5,377.40/7,420.79 = 3,019.53/x
  3. Step 3: Cross multiply
    5,377.40x = 7,420.79 × 3,019.53
  4. Step 4: Simplify right side
    5,377.40x = 22,407,282.93
  5. Step 5: Solve for x
    x = 22,407,282.93/5,377.40
  6. Step 6: Final answer
    x = 4,166.94

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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.