Home / 2,188.38-3,019.67-1,304.01

Finding the Fourth Proportional to 2,188.38, 3,019.67 and 1,304.01

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Solution

The fourth proportional to 2,188.38, 3,019.67 and 1,304.01 is: 1,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.38 : 3,019.67 = 1,304.01 : x
  2. Step 2: Convert to fraction form
    2,188.38/3,019.67 = 1,304.01/x
  3. Step 3: Cross multiply
    2,188.38x = 3,019.67 × 1,304.01
  4. Step 4: Simplify right side
    2,188.38x = 3,937,673.36
  5. Step 5: Solve for x
    x = 3,937,673.36/2,188.38
  6. Step 6: Final answer
    x = 1,799.36

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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.