Home / 3,117.12-4,672.44-2,955.12

Finding the Fourth Proportional to 3,117.12, 4,672.44 and 2,955.12

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Solution

The fourth proportional to 3,117.12, 4,672.44 and 2,955.12 is: 4,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.12 : 4,672.44 = 2,955.12 : x
  2. Step 2: Convert to fraction form
    3,117.12/4,672.44 = 2,955.12/x
  3. Step 3: Cross multiply
    3,117.12x = 4,672.44 × 2,955.12
  4. Step 4: Simplify right side
    3,117.12x = 13,807,620.89
  5. Step 5: Solve for x
    x = 13,807,620.89/3,117.12
  6. Step 6: Final answer
    x = 4,429.61

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1.5x scale

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.