Home / 7,820.45-11,732.51-2,555.71

Finding the Fourth Proportional to 7,820.45, 11,732.51 and 2,555.71

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Solution

The fourth proportional to 7,820.45, 11,732.51 and 2,555.71 is: 3,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.45 : 11,732.51 = 2,555.71 : x
  2. Step 2: Convert to fraction form
    7,820.45/11,732.51 = 2,555.71/x
  3. Step 3: Cross multiply
    7,820.45x = 11,732.51 × 2,555.71
  4. Step 4: Simplify right side
    7,820.45x = 29,984,855.81
  5. Step 5: Solve for x
    x = 29,984,855.81/7,820.45
  6. Step 6: Final answer
    x = 3,834.16

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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.