Home / 6,782.28-9,360.41-4,129.53

Finding the Fourth Proportional to 6,782.28, 9,360.41 and 4,129.53

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Solution

The fourth proportional to 6,782.28, 9,360.41 and 4,129.53 is: 5,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,782.28 : 9,360.41 = 4,129.53 : x
  2. Step 2: Convert to fraction form
    6,782.28/9,360.41 = 4,129.53/x
  3. Step 3: Cross multiply
    6,782.28x = 9,360.41 × 4,129.53
  4. Step 4: Simplify right side
    6,782.28x = 38,654,093.91
  5. Step 5: Solve for x
    x = 38,654,093.91/6,782.28
  6. Step 6: Final answer
    x = 5,699.28

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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.