Home / 4,445.20-6,120-3,657.84

Finding the Fourth Proportional to 4,445.20, 6,120 and 3,657.84

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Solution

The fourth proportional to 4,445.20, 6,120 and 3,657.84 is: 5,035.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,445.20 : 6,120 = 3,657.84 : x
  2. Step 2: Convert to fraction form
    4,445.20/6,120 = 3,657.84/x
  3. Step 3: Cross multiply
    4,445.20x = 6,120 × 3,657.84
  4. Step 4: Simplify right side
    4,445.20x = 22,385,980.80
  5. Step 5: Solve for x
    x = 22,385,980.80/4,445.20
  6. Step 6: Final answer
    x = 5,035.99

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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.