Home / 1,691.07-2,333.67-945.03

Finding the Fourth Proportional to 1,691.07, 2,333.67 and 945.03

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Solution

The fourth proportional to 1,691.07, 2,333.67 and 945.03 is: 1,304.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.07 : 2,333.67 = 945.03 : x
  2. Step 2: Convert to fraction form
    1,691.07/2,333.67 = 945.03/x
  3. Step 3: Cross multiply
    1,691.07x = 2,333.67 × 945.03
  4. Step 4: Simplify right side
    1,691.07x = 2,205,388.16
  5. Step 5: Solve for x
    x = 2,205,388.16/1,691.07
  6. Step 6: Final answer
    x = 1,304.14

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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.