Home / 2,931.90-4,046.41-1,672.67

Finding the Fourth Proportional to 2,931.90, 4,046.41 and 1,672.67

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Solution

The fourth proportional to 2,931.90, 4,046.41 and 1,672.67 is: 2,308.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.90 : 4,046.41 = 1,672.67 : x
  2. Step 2: Convert to fraction form
    2,931.90/4,046.41 = 1,672.67/x
  3. Step 3: Cross multiply
    2,931.90x = 4,046.41 × 1,672.67
  4. Step 4: Simplify right side
    2,931.90x = 6,768,305.65
  5. Step 5: Solve for x
    x = 6,768,305.65/2,931.90
  6. Step 6: Final answer
    x = 2,308.50

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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.