Home / 2,416.90-3,620.55-1,440.10

Finding the Fourth Proportional to 2,416.90, 3,620.55 and 1,440.10

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Solution

The fourth proportional to 2,416.90, 3,620.55 and 1,440.10 is: 2,157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.90 : 3,620.55 = 1,440.10 : x
  2. Step 2: Convert to fraction form
    2,416.90/3,620.55 = 1,440.10/x
  3. Step 3: Cross multiply
    2,416.90x = 3,620.55 × 1,440.10
  4. Step 4: Simplify right side
    2,416.90x = 5,213,954.06
  5. Step 5: Solve for x
    x = 5,213,954.06/2,416.90
  6. Step 6: Final answer
    x = 2,157.29

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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.