Home / 4,606.40-6,909.60-1,319.29

Finding the Fourth Proportional to 4,606.40, 6,909.60 and 1,319.29

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Solution

The fourth proportional to 4,606.40, 6,909.60 and 1,319.29 is: 1,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,606.40 : 6,909.60 = 1,319.29 : x
  2. Step 2: Convert to fraction form
    4,606.40/6,909.60 = 1,319.29/x
  3. Step 3: Cross multiply
    4,606.40x = 6,909.60 × 1,319.29
  4. Step 4: Simplify right side
    4,606.40x = 9,115,766.18
  5. Step 5: Solve for x
    x = 9,115,766.18/4,606.40
  6. Step 6: Final answer
    x = 1,978.94

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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.