Home / 2,909.90-4,015.58-1,583.60

Finding the Fourth Proportional to 2,909.90, 4,015.58 and 1,583.60

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Solution

The fourth proportional to 2,909.90, 4,015.58 and 1,583.60 is: 2,185.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.90 : 4,015.58 = 1,583.60 : x
  2. Step 2: Convert to fraction form
    2,909.90/4,015.58 = 1,583.60/x
  3. Step 3: Cross multiply
    2,909.90x = 4,015.58 × 1,583.60
  4. Step 4: Simplify right side
    2,909.90x = 6,359,044.49
  5. Step 5: Solve for x
    x = 6,359,044.49/2,909.90
  6. Step 6: Final answer
    x = 2,185.31

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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.