Home / 2,792.29-4,188.14-1,405.06

Finding the Fourth Proportional to 2,792.29, 4,188.14 and 1,405.06

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Solution

The fourth proportional to 2,792.29, 4,188.14 and 1,405.06 is: 2,107.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.29 : 4,188.14 = 1,405.06 : x
  2. Step 2: Convert to fraction form
    2,792.29/4,188.14 = 1,405.06/x
  3. Step 3: Cross multiply
    2,792.29x = 4,188.14 × 1,405.06
  4. Step 4: Simplify right side
    2,792.29x = 5,884,587.99
  5. Step 5: Solve for x
    x = 5,884,587.99/2,792.29
  6. Step 6: Final answer
    x = 2,107.44

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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.