Home / 5,715.43-8,574.77-1,820.14

Finding the Fourth Proportional to 5,715.43, 8,574.77 and 1,820.14

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Solution

The fourth proportional to 5,715.43, 8,574.77 and 1,820.14 is: 2,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.43 : 8,574.77 = 1,820.14 : x
  2. Step 2: Convert to fraction form
    5,715.43/8,574.77 = 1,820.14/x
  3. Step 3: Cross multiply
    5,715.43x = 8,574.77 × 1,820.14
  4. Step 4: Simplify right side
    5,715.43x = 15,607,281.87
  5. Step 5: Solve for x
    x = 15,607,281.87/5,715.43
  6. Step 6: Final answer
    x = 2,730.73

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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.