Home / 2,688.09-3,708.66-1,626.18

Finding the Fourth Proportional to 2,688.09, 3,708.66 and 1,626.18

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Solution

The fourth proportional to 2,688.09, 3,708.66 and 1,626.18 is: 2,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.09 : 3,708.66 = 1,626.18 : x
  2. Step 2: Convert to fraction form
    2,688.09/3,708.66 = 1,626.18/x
  3. Step 3: Cross multiply
    2,688.09x = 3,708.66 × 1,626.18
  4. Step 4: Simplify right side
    2,688.09x = 6,030,948.72
  5. Step 5: Solve for x
    x = 6,030,948.72/2,688.09
  6. Step 6: Final answer
    x = 2,243.58

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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.