Home / 2,454.21-3,680.99-788.19

Finding the Fourth Proportional to 2,454.21, 3,680.99 and 788.19

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Solution

The fourth proportional to 2,454.21, 3,680.99 and 788.19 is: 1,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.21 : 3,680.99 = 788.19 : x
  2. Step 2: Convert to fraction form
    2,454.21/3,680.99 = 788.19/x
  3. Step 3: Cross multiply
    2,454.21x = 3,680.99 × 788.19
  4. Step 4: Simplify right side
    2,454.21x = 2,901,315.57
  5. Step 5: Solve for x
    x = 2,901,315.57/2,454.21
  6. Step 6: Final answer
    x = 1,182.18

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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.