Home / 1,419.06-2,130.30-1,110.54

Finding the Fourth Proportional to 1,419.06, 2,130.30 and 1,110.54

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Solution

The fourth proportional to 1,419.06, 2,130.30 and 1,110.54 is: 1,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.06 : 2,130.30 = 1,110.54 : x
  2. Step 2: Convert to fraction form
    1,419.06/2,130.30 = 1,110.54/x
  3. Step 3: Cross multiply
    1,419.06x = 2,130.30 × 1,110.54
  4. Step 4: Simplify right side
    1,419.06x = 2,365,783.36
  5. Step 5: Solve for x
    x = 2,365,783.36/1,419.06
  6. Step 6: Final answer
    x = 1,667.15

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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.