Home / 6,542.47-9,028.50-3,889.99

Finding the Fourth Proportional to 6,542.47, 9,028.50 and 3,889.99

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Solution

The fourth proportional to 6,542.47, 9,028.50 and 3,889.99 is: 5,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,542.47 : 9,028.50 = 3,889.99 : x
  2. Step 2: Convert to fraction form
    6,542.47/9,028.50 = 3,889.99/x
  3. Step 3: Cross multiply
    6,542.47x = 9,028.50 × 3,889.99
  4. Step 4: Simplify right side
    6,542.47x = 35,120,774.72
  5. Step 5: Solve for x
    x = 35,120,774.72/6,542.47
  6. Step 6: Final answer
    x = 5,368.12

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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.