Home / 3,117.26-4,243.88-3,065.42

Finding the Fourth Proportional to 3,117.26, 4,243.88 and 3,065.42

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Solution

The fourth proportional to 3,117.26, 4,243.88 and 3,065.42 is: 4,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.26 : 4,243.88 = 3,065.42 : x
  2. Step 2: Convert to fraction form
    3,117.26/4,243.88 = 3,065.42/x
  3. Step 3: Cross multiply
    3,117.26x = 4,243.88 × 3,065.42
  4. Step 4: Simplify right side
    3,117.26x = 13,009,274.63
  5. Step 5: Solve for x
    x = 13,009,274.63/3,117.26
  6. Step 6: Final answer
    x = 4,173.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.