Home / 3,864.10-5,788.05-2,130.70

Finding the Fourth Proportional to 3,864.10, 5,788.05 and 2,130.70

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Solution

The fourth proportional to 3,864.10, 5,788.05 and 2,130.70 is: 3,191.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.10 : 5,788.05 = 2,130.70 : x
  2. Step 2: Convert to fraction form
    3,864.10/5,788.05 = 2,130.70/x
  3. Step 3: Cross multiply
    3,864.10x = 5,788.05 × 2,130.70
  4. Step 4: Simplify right side
    3,864.10x = 12,332,598.14
  5. Step 5: Solve for x
    x = 12,332,598.14/3,864.10
  6. Step 6: Final answer
    x = 3,191.58

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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.