Home / 3,415.40-5,123.08-1,953.52

Finding the Fourth Proportional to 3,415.40, 5,123.08 and 1,953.52

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Solution

The fourth proportional to 3,415.40, 5,123.08 and 1,953.52 is: 2,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.40 : 5,123.08 = 1,953.52 : x
  2. Step 2: Convert to fraction form
    3,415.40/5,123.08 = 1,953.52/x
  3. Step 3: Cross multiply
    3,415.40x = 5,123.08 × 1,953.52
  4. Step 4: Simplify right side
    3,415.40x = 10,008,028.88
  5. Step 5: Solve for x
    x = 10,008,028.88/3,415.40
  6. Step 6: Final answer
    x = 2,930.27

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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.