Home / 2,909.76-4,015.37-1,583.46

Finding the Fourth Proportional to 2,909.76, 4,015.37 and 1,583.46

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Solution

The fourth proportional to 2,909.76, 4,015.37 and 1,583.46 is: 2,185.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.76 : 4,015.37 = 1,583.46 : x
  2. Step 2: Convert to fraction form
    2,909.76/4,015.37 = 1,583.46/x
  3. Step 3: Cross multiply
    2,909.76x = 4,015.37 × 1,583.46
  4. Step 4: Simplify right side
    2,909.76x = 6,358,169.86
  5. Step 5: Solve for x
    x = 6,358,169.86/2,909.76
  6. Step 6: Final answer
    x = 2,185.12

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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.