Home / 6,783.12-9,361.28-3,798.91

Finding the Fourth Proportional to 6,783.12, 9,361.28 and 3,798.91

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Solution

The fourth proportional to 6,783.12, 9,361.28 and 3,798.91 is: 5,242.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,783.12 : 9,361.28 = 3,798.91 : x
  2. Step 2: Convert to fraction form
    6,783.12/9,361.28 = 3,798.91/x
  3. Step 3: Cross multiply
    6,783.12x = 9,361.28 × 3,798.91
  4. Step 4: Simplify right side
    6,783.12x = 35,562,660.20
  5. Step 5: Solve for x
    x = 35,562,660.20/6,783.12
  6. Step 6: Final answer
    x = 5,242.82

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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.