Home / 1,824.25-2,515.47-1,403.68

Finding the Fourth Proportional to 1,824.25, 2,515.47 and 1,403.68

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Solution

The fourth proportional to 1,824.25, 2,515.47 and 1,403.68 is: 1,935.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,824.25 : 2,515.47 = 1,403.68 : x
  2. Step 2: Convert to fraction form
    1,824.25/2,515.47 = 1,403.68/x
  3. Step 3: Cross multiply
    1,824.25x = 2,515.47 × 1,403.68
  4. Step 4: Simplify right side
    1,824.25x = 3,530,914.93
  5. Step 5: Solve for x
    x = 3,530,914.93/1,824.25
  6. Step 6: Final answer
    x = 1,935.54

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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.