Home / 3,208.76-4,428.19-1,792.40

Finding the Fourth Proportional to 3,208.76, 4,428.19 and 1,792.40

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Solution

The fourth proportional to 3,208.76, 4,428.19 and 1,792.40 is: 2,473.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.76 : 4,428.19 = 1,792.40 : x
  2. Step 2: Convert to fraction form
    3,208.76/4,428.19 = 1,792.40/x
  3. Step 3: Cross multiply
    3,208.76x = 4,428.19 × 1,792.40
  4. Step 4: Simplify right side
    3,208.76x = 7,937,095.14
  5. Step 5: Solve for x
    x = 7,937,095.14/3,208.76
  6. Step 6: Final answer
    x = 2,473.57

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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.