Home / 3,340.42-5,011.32-1,260.40

Finding the Fourth Proportional to 3,340.42, 5,011.32 and 1,260.40

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Solution

The fourth proportional to 3,340.42, 5,011.32 and 1,260.40 is: 1,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.42 : 5,011.32 = 1,260.40 : x
  2. Step 2: Convert to fraction form
    3,340.42/5,011.32 = 1,260.40/x
  3. Step 3: Cross multiply
    3,340.42x = 5,011.32 × 1,260.40
  4. Step 4: Simplify right side
    3,340.42x = 6,316,267.73
  5. Step 5: Solve for x
    x = 6,316,267.73/3,340.42
  6. Step 6: Final answer
    x = 1,890.86

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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.