Home / 1,465.03-2,021.79-875.49

Finding the Fourth Proportional to 1,465.03, 2,021.79 and 875.49

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Solution

The fourth proportional to 1,465.03, 2,021.79 and 875.49 is: 1,208.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.03 : 2,021.79 = 875.49 : x
  2. Step 2: Convert to fraction form
    1,465.03/2,021.79 = 875.49/x
  3. Step 3: Cross multiply
    1,465.03x = 2,021.79 × 875.49
  4. Step 4: Simplify right side
    1,465.03x = 1,770,056.93
  5. Step 5: Solve for x
    x = 1,770,056.93/1,465.03
  6. Step 6: Final answer
    x = 1,208.21

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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.