Home / 3,438.39-5,157.34-1,358.01

Finding the Fourth Proportional to 3,438.39, 5,157.34 and 1,358.01

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Solution

The fourth proportional to 3,438.39, 5,157.34 and 1,358.01 is: 2,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.39 : 5,157.34 = 1,358.01 : x
  2. Step 2: Convert to fraction form
    3,438.39/5,157.34 = 1,358.01/x
  3. Step 3: Cross multiply
    3,438.39x = 5,157.34 × 1,358.01
  4. Step 4: Simplify right side
    3,438.39x = 7,003,719.29
  5. Step 5: Solve for x
    x = 7,003,719.29/3,438.39
  6. Step 6: Final answer
    x = 2,036.92

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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.