Home / 5,400.45-7,452.81-2,977.71

Finding the Fourth Proportional to 5,400.45, 7,452.81 and 2,977.71

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Solution

The fourth proportional to 5,400.45, 7,452.81 and 2,977.71 is: 4,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.45 : 7,452.81 = 2,977.71 : x
  2. Step 2: Convert to fraction form
    5,400.45/7,452.81 = 2,977.71/x
  3. Step 3: Cross multiply
    5,400.45x = 7,452.81 × 2,977.71
  4. Step 4: Simplify right side
    5,400.45x = 22,192,306.87
  5. Step 5: Solve for x
    x = 22,192,306.87/5,400.45
  6. Step 6: Final answer
    x = 4,109.34

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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.