Home / 2,405.75-3,312.22-2,095.12

Finding the Fourth Proportional to 2,405.75, 3,312.22 and 2,095.12

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Solution

The fourth proportional to 2,405.75, 3,312.22 and 2,095.12 is: 2,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.75 : 3,312.22 = 2,095.12 : x
  2. Step 2: Convert to fraction form
    2,405.75/3,312.22 = 2,095.12/x
  3. Step 3: Cross multiply
    2,405.75x = 3,312.22 × 2,095.12
  4. Step 4: Simplify right side
    2,405.75x = 6,939,476.67
  5. Step 5: Solve for x
    x = 6,939,476.67/2,405.75
  6. Step 6: Final answer
    x = 2,884.54

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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.