Home / 2,909.89-4,015.58-1,583.63

Finding the Fourth Proportional to 2,909.89, 4,015.58 and 1,583.63

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Solution

The fourth proportional to 2,909.89, 4,015.58 and 1,583.63 is: 2,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.89 : 4,015.58 = 1,583.63 : x
  2. Step 2: Convert to fraction form
    2,909.89/4,015.58 = 1,583.63/x
  3. Step 3: Cross multiply
    2,909.89x = 4,015.58 × 1,583.63
  4. Step 4: Simplify right side
    2,909.89x = 6,359,176.84
  5. Step 5: Solve for x
    x = 6,359,176.84/2,909.89
  6. Step 6: Final answer
    x = 2,185.37

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1.5x scale

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.