Home / 2,419.40-3,338.60-1,357.08

Finding the Fourth Proportional to 2,419.40, 3,338.60 and 1,357.08

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Solution

The fourth proportional to 2,419.40, 3,338.60 and 1,357.08 is: 1,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.40 : 3,338.60 = 1,357.08 : x
  2. Step 2: Convert to fraction form
    2,419.40/3,338.60 = 1,357.08/x
  3. Step 3: Cross multiply
    2,419.40x = 3,338.60 × 1,357.08
  4. Step 4: Simplify right side
    2,419.40x = 4,530,740.50
  5. Step 5: Solve for x
    x = 4,530,740.50/2,419.40
  6. Step 6: Final answer
    x = 1,872.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.