Home / 5,377.84-7,421.42-3,020.74

Finding the Fourth Proportional to 5,377.84, 7,421.42 and 3,020.74

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Solution

The fourth proportional to 5,377.84, 7,421.42 and 3,020.74 is: 4,168.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.84 : 7,421.42 = 3,020.74 : x
  2. Step 2: Convert to fraction form
    5,377.84/7,421.42 = 3,020.74/x
  3. Step 3: Cross multiply
    5,377.84x = 7,421.42 × 3,020.74
  4. Step 4: Simplify right side
    5,377.84x = 22,418,180.25
  5. Step 5: Solve for x
    x = 22,418,180.25/5,377.84
  6. Step 6: Final answer
    x = 4,168.62

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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.