Home / 1,465.03-2,021.75-801.89

Finding the Fourth Proportional to 1,465.03, 2,021.75 and 801.89

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Solution

The fourth proportional to 1,465.03, 2,021.75 and 801.89 is: 1,106.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.03 : 2,021.75 = 801.89 : x
  2. Step 2: Convert to fraction form
    1,465.03/2,021.75 = 801.89/x
  3. Step 3: Cross multiply
    1,465.03x = 2,021.75 × 801.89
  4. Step 4: Simplify right side
    1,465.03x = 1,621,221.11
  5. Step 5: Solve for x
    x = 1,621,221.11/1,465.03
  6. Step 6: Final answer
    x = 1,106.61

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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.