Home / 2,864.10-4,293.36-1,221.06

Finding the Fourth Proportional to 2,864.10, 4,293.36 and 1,221.06

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Solution

The fourth proportional to 2,864.10, 4,293.36 and 1,221.06 is: 1,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.10 : 4,293.36 = 1,221.06 : x
  2. Step 2: Convert to fraction form
    2,864.10/4,293.36 = 1,221.06/x
  3. Step 3: Cross multiply
    2,864.10x = 4,293.36 × 1,221.06
  4. Step 4: Simplify right side
    2,864.10x = 5,242,450.16
  5. Step 5: Solve for x
    x = 5,242,450.16/2,864.10
  6. Step 6: Final answer
    x = 1,830.40

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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.