Home / 6,240.80-8,610.64-3,721.77

Finding the Fourth Proportional to 6,240.80, 8,610.64 and 3,721.77

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Solution

The fourth proportional to 6,240.80, 8,610.64 and 3,721.77 is: 5,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.80 : 8,610.64 = 3,721.77 : x
  2. Step 2: Convert to fraction form
    6,240.80/8,610.64 = 3,721.77/x
  3. Step 3: Cross multiply
    6,240.80x = 8,610.64 × 3,721.77
  4. Step 4: Simplify right side
    6,240.80x = 32,046,812.33
  5. Step 5: Solve for x
    x = 32,046,812.33/6,240.80
  6. Step 6: Final answer
    x = 5,135.05

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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.