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Finding the Fourth Proportional to 5,722.38, 7,900.68 and 4,393.68

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Solution

The fourth proportional to 5,722.38, 7,900.68 and 4,393.68 is: 6,066.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.38 : 7,900.68 = 4,393.68 : x
  2. Step 2: Convert to fraction form
    5,722.38/7,900.68 = 4,393.68/x
  3. Step 3: Cross multiply
    5,722.38x = 7,900.68 × 4,393.68
  4. Step 4: Simplify right side
    5,722.38x = 34,713,059.70
  5. Step 5: Solve for x
    x = 34,713,059.70/5,722.38
  6. Step 6: Final answer
    x = 6,066.19

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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.