Home / 2,696.09-3,722.30-1,688.19

Finding the Fourth Proportional to 2,696.09, 3,722.30 and 1,688.19

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Solution

The fourth proportional to 2,696.09, 3,722.30 and 1,688.19 is: 2,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.09 : 3,722.30 = 1,688.19 : x
  2. Step 2: Convert to fraction form
    2,696.09/3,722.30 = 1,688.19/x
  3. Step 3: Cross multiply
    2,696.09x = 3,722.30 × 1,688.19
  4. Step 4: Simplify right side
    2,696.09x = 6,283,964.00
  5. Step 5: Solve for x
    x = 6,283,964.00/2,696.09
  6. Step 6: Final answer
    x = 2,330.77

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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.