Home / 4,218.40-5,823.66-2,961.28

Finding the Fourth Proportional to 4,218.40, 5,823.66 and 2,961.28

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Solution

The fourth proportional to 4,218.40, 5,823.66 and 2,961.28 is: 4,088.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.40 : 5,823.66 = 2,961.28 : x
  2. Step 2: Convert to fraction form
    4,218.40/5,823.66 = 2,961.28/x
  3. Step 3: Cross multiply
    4,218.40x = 5,823.66 × 2,961.28
  4. Step 4: Simplify right side
    4,218.40x = 17,245,487.88
  5. Step 5: Solve for x
    x = 17,245,487.88/4,218.40
  6. Step 6: Final answer
    x = 4,088.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.