Home / 3,415.38-5,123.06-1,106.88

Finding the Fourth Proportional to 3,415.38, 5,123.06 and 1,106.88

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Solution

The fourth proportional to 3,415.38, 5,123.06 and 1,106.88 is: 1,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.38 : 5,123.06 = 1,106.88 : x
  2. Step 2: Convert to fraction form
    3,415.38/5,123.06 = 1,106.88/x
  3. Step 3: Cross multiply
    3,415.38x = 5,123.06 × 1,106.88
  4. Step 4: Simplify right side
    3,415.38x = 5,670,612.65
  5. Step 5: Solve for x
    x = 5,670,612.65/3,415.38
  6. Step 6: Final answer
    x = 1,660.32

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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.