Home / 2,929.87-4,365.22-2,790.55

Finding the Fourth Proportional to 2,929.87, 4,365.22 and 2,790.55

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Solution

The fourth proportional to 2,929.87, 4,365.22 and 2,790.55 is: 4,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.87 : 4,365.22 = 2,790.55 : x
  2. Step 2: Convert to fraction form
    2,929.87/4,365.22 = 2,790.55/x
  3. Step 3: Cross multiply
    2,929.87x = 4,365.22 × 2,790.55
  4. Step 4: Simplify right side
    2,929.87x = 12,181,364.67
  5. Step 5: Solve for x
    x = 12,181,364.67/2,929.87
  6. Step 6: Final answer
    x = 4,157.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.