Home / 2,454.90-3,679.56-1,221.06

Finding the Fourth Proportional to 2,454.90, 3,679.56 and 1,221.06

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Solution

The fourth proportional to 2,454.90, 3,679.56 and 1,221.06 is: 1,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.90 : 3,679.56 = 1,221.06 : x
  2. Step 2: Convert to fraction form
    2,454.90/3,679.56 = 1,221.06/x
  3. Step 3: Cross multiply
    2,454.90x = 3,679.56 × 1,221.06
  4. Step 4: Simplify right side
    2,454.90x = 4,492,963.53
  5. Step 5: Solve for x
    x = 4,492,963.53/2,454.90
  6. Step 6: Final answer
    x = 1,830.20

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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.