Home / 3,653.71-5,479.38-1,187.93

Finding the Fourth Proportional to 3,653.71, 5,479.38 and 1,187.93

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Solution

The fourth proportional to 3,653.71, 5,479.38 and 1,187.93 is: 1,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.71 : 5,479.38 = 1,187.93 : x
  2. Step 2: Convert to fraction form
    3,653.71/5,479.38 = 1,187.93/x
  3. Step 3: Cross multiply
    3,653.71x = 5,479.38 × 1,187.93
  4. Step 4: Simplify right side
    3,653.71x = 6,509,133.58
  5. Step 5: Solve for x
    x = 6,509,133.58/3,653.71
  6. Step 6: Final answer
    x = 1,781.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.