Home / 2,668.08-3,681.51-1,489.15

Finding the Fourth Proportional to 2,668.08, 3,681.51 and 1,489.15

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Solution

The fourth proportional to 2,668.08, 3,681.51 and 1,489.15 is: 2,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.08 : 3,681.51 = 1,489.15 : x
  2. Step 2: Convert to fraction form
    2,668.08/3,681.51 = 1,489.15/x
  3. Step 3: Cross multiply
    2,668.08x = 3,681.51 × 1,489.15
  4. Step 4: Simplify right side
    2,668.08x = 5,482,320.62
  5. Step 5: Solve for x
    x = 5,482,320.62/2,668.08
  6. Step 6: Final answer
    x = 2,054.78

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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.