Home / 2,708.64-3,736.71-1,913.13

Finding the Fourth Proportional to 2,708.64, 3,736.71 and 1,913.13

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Solution

The fourth proportional to 2,708.64, 3,736.71 and 1,913.13 is: 2,639.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.64 : 3,736.71 = 1,913.13 : x
  2. Step 2: Convert to fraction form
    2,708.64/3,736.71 = 1,913.13/x
  3. Step 3: Cross multiply
    2,708.64x = 3,736.71 × 1,913.13
  4. Step 4: Simplify right side
    2,708.64x = 7,148,812.00
  5. Step 5: Solve for x
    x = 7,148,812.00/2,708.64
  6. Step 6: Final answer
    x = 2,639.26

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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.