Home / 3,117.66-4,302.37-1,720.41

Finding the Fourth Proportional to 3,117.66, 4,302.37 and 1,720.41

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Solution

The fourth proportional to 3,117.66, 4,302.37 and 1,720.41 is: 2,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.66 : 4,302.37 = 1,720.41 : x
  2. Step 2: Convert to fraction form
    3,117.66/4,302.37 = 1,720.41/x
  3. Step 3: Cross multiply
    3,117.66x = 4,302.37 × 1,720.41
  4. Step 4: Simplify right side
    3,117.66x = 7,401,836.07
  5. Step 5: Solve for x
    x = 7,401,836.07/3,117.66
  6. Step 6: Final answer
    x = 2,374.16

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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.