Home / 1,445.25-2,165.13-1,153.34

Finding the Fourth Proportional to 1,445.25, 2,165.13 and 1,153.34

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Solution

The fourth proportional to 1,445.25, 2,165.13 and 1,153.34 is: 1,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.25 : 2,165.13 = 1,153.34 : x
  2. Step 2: Convert to fraction form
    1,445.25/2,165.13 = 1,153.34/x
  3. Step 3: Cross multiply
    1,445.25x = 2,165.13 × 1,153.34
  4. Step 4: Simplify right side
    1,445.25x = 2,497,120.21
  5. Step 5: Solve for x
    x = 2,497,120.21/1,445.25
  6. Step 6: Final answer
    x = 1,727.81

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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.