Home / 5,377.69-7,420.98-3,020.59

Finding the Fourth Proportional to 5,377.69, 7,420.98 and 3,020.59

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Solution

The fourth proportional to 5,377.69, 7,420.98 and 3,020.59 is: 4,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.69 : 7,420.98 = 3,020.59 : x
  2. Step 2: Convert to fraction form
    5,377.69/7,420.98 = 3,020.59/x
  3. Step 3: Cross multiply
    5,377.69x = 7,420.98 × 3,020.59
  4. Step 4: Simplify right side
    5,377.69x = 22,415,737.98
  5. Step 5: Solve for x
    x = 22,415,737.98/5,377.69
  6. Step 6: Final answer
    x = 4,168.28

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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.