Home / 5,631.40-7,771.81-3,274.00

Finding the Fourth Proportional to 5,631.40, 7,771.81 and 3,274.00

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Solution

The fourth proportional to 5,631.40, 7,771.81 and 3,274.00 is: 4,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.40 : 7,771.81 = 3,274.00 : x
  2. Step 2: Convert to fraction form
    5,631.40/7,771.81 = 3,274.00/x
  3. Step 3: Cross multiply
    5,631.40x = 7,771.81 × 3,274.00
  4. Step 4: Simplify right side
    5,631.40x = 25,444,909.00
  5. Step 5: Solve for x
    x = 25,444,909.00/5,631.40
  6. Step 6: Final answer
    x = 4,518.40

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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.