Home / 3,415.13-5,123.50-1,106.63

Finding the Fourth Proportional to 3,415.13, 5,123.50 and 1,106.63

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Solution

The fourth proportional to 3,415.13, 5,123.50 and 1,106.63 is: 1,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.13 : 5,123.50 = 1,106.63 : x
  2. Step 2: Convert to fraction form
    3,415.13/5,123.50 = 1,106.63/x
  3. Step 3: Cross multiply
    3,415.13x = 5,123.50 × 1,106.63
  4. Step 4: Simplify right side
    3,415.13x = 5,669,818.81
  5. Step 5: Solve for x
    x = 5,669,818.81/3,415.13
  6. Step 6: Final answer
    x = 1,660.21

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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.