Home / 5,161.79-7,123.45-2,923.62

Finding the Fourth Proportional to 5,161.79, 7,123.45 and 2,923.62

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Solution

The fourth proportional to 5,161.79, 7,123.45 and 2,923.62 is: 4,034.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.79 : 7,123.45 = 2,923.62 : x
  2. Step 2: Convert to fraction form
    5,161.79/7,123.45 = 2,923.62/x
  3. Step 3: Cross multiply
    5,161.79x = 7,123.45 × 2,923.62
  4. Step 4: Simplify right side
    5,161.79x = 20,826,261.45
  5. Step 5: Solve for x
    x = 20,826,261.45/5,161.79
  6. Step 6: Final answer
    x = 4,034.69

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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.