Home / 2,864.21-4,300.43-1,830.78

Finding the Fourth Proportional to 2,864.21, 4,300.43 and 1,830.78

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Solution

The fourth proportional to 2,864.21, 4,300.43 and 1,830.78 is: 2,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.21 : 4,300.43 = 1,830.78 : x
  2. Step 2: Convert to fraction form
    2,864.21/4,300.43 = 1,830.78/x
  3. Step 3: Cross multiply
    2,864.21x = 4,300.43 × 1,830.78
  4. Step 4: Simplify right side
    2,864.21x = 7,873,132.08
  5. Step 5: Solve for x
    x = 7,873,132.08/2,864.21
  6. Step 6: Final answer
    x = 2,748.80

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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.