Home / 1,410.40-2,110.74-1,190.08

Finding the Fourth Proportional to 1,410.40, 2,110.74 and 1,190.08

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Solution

The fourth proportional to 1,410.40, 2,110.74 and 1,190.08 is: 1,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.40 : 2,110.74 = 1,190.08 : x
  2. Step 2: Convert to fraction form
    1,410.40/2,110.74 = 1,190.08/x
  3. Step 3: Cross multiply
    1,410.40x = 2,110.74 × 1,190.08
  4. Step 4: Simplify right side
    1,410.40x = 2,511,949.46
  5. Step 5: Solve for x
    x = 2,511,949.46/1,410.40
  6. Step 6: Final answer
    x = 1,781.02

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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.