Home / 3,864.15-5,335.29-3,055.40

Finding the Fourth Proportional to 3,864.15, 5,335.29 and 3,055.40

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Solution

The fourth proportional to 3,864.15, 5,335.29 and 3,055.40 is: 4,218.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.15 : 5,335.29 = 3,055.40 : x
  2. Step 2: Convert to fraction form
    3,864.15/5,335.29 = 3,055.40/x
  3. Step 3: Cross multiply
    3,864.15x = 5,335.29 × 3,055.40
  4. Step 4: Simplify right side
    3,864.15x = 16,301,429.79
  5. Step 5: Solve for x
    x = 16,301,429.79/3,864.15
  6. Step 6: Final answer
    x = 4,218.63

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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.