Home / 5,277.84-7,899.56-3,890.64

Finding the Fourth Proportional to 5,277.84, 7,899.56 and 3,890.64

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Solution

The fourth proportional to 5,277.84, 7,899.56 and 3,890.64 is: 5,823.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.84 : 7,899.56 = 3,890.64 : x
  2. Step 2: Convert to fraction form
    5,277.84/7,899.56 = 3,890.64/x
  3. Step 3: Cross multiply
    5,277.84x = 7,899.56 × 3,890.64
  4. Step 4: Simplify right side
    5,277.84x = 30,734,344.12
  5. Step 5: Solve for x
    x = 30,734,344.12/5,277.84
  6. Step 6: Final answer
    x = 5,823.28

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1.5x scale

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.