Home / 3,784.49-5,674.93-1,319.01

Finding the Fourth Proportional to 3,784.49, 5,674.93 and 1,319.01

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Solution

The fourth proportional to 3,784.49, 5,674.93 and 1,319.01 is: 1,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.49 : 5,674.93 = 1,319.01 : x
  2. Step 2: Convert to fraction form
    3,784.49/5,674.93 = 1,319.01/x
  3. Step 3: Cross multiply
    3,784.49x = 5,674.93 × 1,319.01
  4. Step 4: Simplify right side
    3,784.49x = 7,485,289.42
  5. Step 5: Solve for x
    x = 7,485,289.42/3,784.49
  6. Step 6: Final answer
    x = 1,977.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.