Home / 3,485.46-5,228.21-1,178.58

Finding the Fourth Proportional to 3,485.46, 5,228.21 and 1,178.58

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Solution

The fourth proportional to 3,485.46, 5,228.21 and 1,178.58 is: 1,767.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.46 : 5,228.21 = 1,178.58 : x
  2. Step 2: Convert to fraction form
    3,485.46/5,228.21 = 1,178.58/x
  3. Step 3: Cross multiply
    3,485.46x = 5,228.21 × 1,178.58
  4. Step 4: Simplify right side
    3,485.46x = 6,161,863.74
  5. Step 5: Solve for x
    x = 6,161,863.74/3,485.46
  6. Step 6: Final answer
    x = 1,767.88

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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.