Home / 1,450.01-2,175.55-865.35

Finding the Fourth Proportional to 1,450.01, 2,175.55 and 865.35

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Solution

The fourth proportional to 1,450.01, 2,175.55 and 865.35 is: 1,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.01 : 2,175.55 = 865.35 : x
  2. Step 2: Convert to fraction form
    1,450.01/2,175.55 = 865.35/x
  3. Step 3: Cross multiply
    1,450.01x = 2,175.55 × 865.35
  4. Step 4: Simplify right side
    1,450.01x = 1,882,612.19
  5. Step 5: Solve for x
    x = 1,882,612.19/1,450.01
  6. Step 6: Final answer
    x = 1,298.34

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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.