Home / 5,377.79-7,421.22-3,020.09

Finding the Fourth Proportional to 5,377.79, 7,421.22 and 3,020.09

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Solution

The fourth proportional to 5,377.79, 7,421.22 and 3,020.09 is: 4,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.79 : 7,421.22 = 3,020.09 : x
  2. Step 2: Convert to fraction form
    5,377.79/7,421.22 = 3,020.09/x
  3. Step 3: Cross multiply
    5,377.79x = 7,421.22 × 3,020.09
  4. Step 4: Simplify right side
    5,377.79x = 22,412,715.20
  5. Step 5: Solve for x
    x = 22,412,715.20/5,377.79
  6. Step 6: Final answer
    x = 4,167.64

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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.