Home / 4,342.16-6,512.72-1,222.40

Finding the Fourth Proportional to 4,342.16, 6,512.72 and 1,222.40

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Solution

The fourth proportional to 4,342.16, 6,512.72 and 1,222.40 is: 1,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,342.16 : 6,512.72 = 1,222.40 : x
  2. Step 2: Convert to fraction form
    4,342.16/6,512.72 = 1,222.40/x
  3. Step 3: Cross multiply
    4,342.16x = 6,512.72 × 1,222.40
  4. Step 4: Simplify right side
    4,342.16x = 7,961,110.25
  5. Step 5: Solve for x
    x = 7,961,110.25/4,342.16
  6. Step 6: Final answer
    x = 1,833.45

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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.