Home / 10,620.42-15,929.55-2,830.02

Finding the Fourth Proportional to 10,620.42, 15,929.55 and 2,830.02

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Solution

The fourth proportional to 10,620.42, 15,929.55 and 2,830.02 is: 4,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.42 : 15,929.55 = 2,830.02 : x
  2. Step 2: Convert to fraction form
    10,620.42/15,929.55 = 2,830.02/x
  3. Step 3: Cross multiply
    10,620.42x = 15,929.55 × 2,830.02
  4. Step 4: Simplify right side
    10,620.42x = 45,080,945.09
  5. Step 5: Solve for x
    x = 45,080,945.09/10,620.42
  6. Step 6: Final answer
    x = 4,244.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.