Home / 1,645.45-2,269.01-1,410.21

Finding the Fourth Proportional to 1,645.45, 2,269.01 and 1,410.21

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Solution

The fourth proportional to 1,645.45, 2,269.01 and 1,410.21 is: 1,944.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.45 : 2,269.01 = 1,410.21 : x
  2. Step 2: Convert to fraction form
    1,645.45/2,269.01 = 1,410.21/x
  3. Step 3: Cross multiply
    1,645.45x = 2,269.01 × 1,410.21
  4. Step 4: Simplify right side
    1,645.45x = 3,199,784.12
  5. Step 5: Solve for x
    x = 3,199,784.12/1,645.45
  6. Step 6: Final answer
    x = 1,944.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.